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23123030102130 = 2357759911448983
BaseRepresentation
bin1010100000111101111111…
…11111101101000001110010
310000212112120201120112022010
411100132333333231001302
511012321431201232010
6121102323503423350
74604404145626260
oct520367777550162
9100775521515263
1023123030102130
117405470749472
122715493bb4b56
13cb96529c1b2a
1459d236a9b430
152a173a5bd620
hex1507bffed072

23123030102130 has 64 divisors (see below), whose sum is σ = 63424046665728. Its totient is φ = 5285190824640.

The previous prime is 23123030102119. The next prime is 23123030102141. The reversal of 23123030102130 is 3120103032132.

It is an interprime number because it is at equal distance from previous prime (23123030102119) and next prime (23123030102141).

It is a super-2 number, since 2×231230301021302 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23123030102097 and 23123030102106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15233619 + ... + 16682601.

It is an arithmetic number, because the mean of its divisors is an integer number (991000729152).

Almost surely, 223123030102130 is an apocalyptic number.

23123030102130 is an abundant number, since it is smaller than the sum of its proper divisors (40301016563598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123030102130 is a wasteful number, since it uses less digits than its factorization.

23123030102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524991.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23123030102130 its reverse (3120103032132), we get a palindrome (26243133134262).

The spelling of 23123030102130 in words is "twenty-three trillion, one hundred twenty-three billion, thirty million, one hundred two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 75991 151982 227973 379955 455946 531937 759910 1063874 1139865 1448983 1595811 2279730 2659685 2897966 3191622 4346949 5319370 7244915 7979055 8693898 10142881 14489830 15958110 20285762 21734745 30428643 43469490 50714405 60857286 101428810 152143215 304286430 110109667153 220219334306 330329001459 550548335765 660658002918 770767670071 1101096671530 1541535340142 1651645007295 2312303010213 3303290014590 3853838350355 4624606020426 7707676700710 11561515051065 23123030102130