123130310232 has 32 divisors (see below), whose sum is σ = 307834534080. Its totient is φ = 41042268960.

The previous prime is 123130310213. The next prime is 123130310257. The reversal of 123130310232 is 232013031321.

It is a super-2 number, since 2×123130310232² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123130310199 and 123130310208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371607 + ... + 1458617.

It is an arithmetic number, because the mean of its divisors is an integer number (9619829190).

Almost surely, 2^123130310232 is an apocalyptic number.

123130310232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123130310232 is an abundant number, since it is smaller than the sum of its proper divisors (184704223848).

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

123130310232 is a wasteful number, since it uses less digits than its factorization.

123130310232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145983 (or 145979 counting only the distinct ones).

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

Adding to 123130310232 its reverse (232013031321), we get a palindrome (355143341553).

The spelling of 123130310232 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred ten thousand, two hundred thirty-two".