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10123030310020 = 2251972569297033
BaseRepresentation
bin1001001101001111001110…
…1000000010110010000100
31022211202022101110120012021
42103103303220002302010
52311323431224410040
633310242251332524
72063236061621635
oct223236350026204
938752271416167
1010123030310020
113253175780991
121175ab2451144
135857a00aa234
1426dd58acb88c
151284cae7824a
hex934f3a02c84

10123030310020 has 24 divisors (see below), whose sum is σ = 21366274134744. Its totient is φ = 4028657746176.

The previous prime is 10123030310017. The next prime is 10123030310027. The reversal of 10123030310020 is 2001303032101.

It can be written as a sum of positive squares in 4 ways, for example, as 6017316932484 + 4105713377536 = 2453022^2 + 2026256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10123030309976 and 10123030310003.

It is not an unprimeable number, because it can be changed into a prime (10123030310027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284644577 + ... + 1284652456.

It is an arithmetic number, because the mean of its divisors is an integer number (890261422281).

Almost surely, 210123030310020 is an apocalyptic number.

10123030310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123030310020 is an abundant number, since it is smaller than the sum of its proper divisors (11243243824724).

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

10123030310020 is a wasteful number, since it uses less digits than its factorization.

10123030310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569297239 (or 2569297237 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10123030310020 its reverse (2001303032101), we get a palindrome (12124333342121).

The spelling of 10123030310020 in words is "ten trillion, one hundred twenty-three billion, thirty million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 2569297033 5138594066 10277188132 12846485165 25692970330 51385940660 506151515501 1012303031002 2024606062004 2530757577505 5061515155010 10123030310020