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123332321020 = 22517934450369
BaseRepresentation
bin111001011011100101…
…1011101111011111100
3102210100020112001120111
41302313023131323330
54010041033233040
6132354051355404
711624201301016
oct1626713357374
9383306461514
10123332321020
1148339975237
121ba9b8b2b64
13b8266a4c5c
145d7db371b6
15331c7dedea
hex1cb72ddefc

123332321020 has 24 divisors (see below), whose sum is σ = 260444797200. Its totient is φ = 49057324032.

The previous prime is 123332321011. The next prime is 123332321033. The reversal of 123332321020 is 20123233321.

It is a super-2 number, since 2×1233323210202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123332320982 and 123332321000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17221605 + ... + 17228764.

It is an arithmetic number, because the mean of its divisors is an integer number (10851866550).

Almost surely, 2123332321020 is an apocalyptic number.

123332321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123332321020 is an abundant number, since it is smaller than the sum of its proper divisors (137112476180).

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

123332321020 is a wasteful number, since it uses less digits than its factorization.

123332321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34450557 (or 34450555 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123332321020 its reverse (20123233321), we get a palindrome (143455554341).

The spelling of 123332321020 in words is "one hundred twenty-three billion, three hundred thirty-two million, three hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 34450369 68900738 137801476 172251845 344503690 689007380 6166616051 12333232102 24666464204 30833080255 61666160510 123332321020