130312231232 has 56 divisors (see below), whose sum is σ = 274922626176. Its totient is φ = 61147294208.

The previous prime is 130312231219. The next prime is 130312231271. The reversal of 130312231232 is 232132213031.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 130312231198 and 130312231207.

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, 757148 + ... + 913179.

Almost surely, 2^130312231232 is an apocalyptic number.

It is an amenable number.

130312231232 is an abundant number, since it is smaller than the sum of its proper divisors (144610394944).

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

130312231232 is a wasteful number, since it uses less digits than its factorization.

130312231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670415 (or 1670405 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 130312231232 its reverse (232132213031), we get a palindrome (362444444263).

The spelling of 130312231232 in words is "one hundred thirty billion, three hundred twelve million, two hundred thirty-one thousand, two hundred thirty-two".