31440412103232 has 112 divisors (see below), whose sum is σ = 91249836035904. Its totient is φ = 9474759936000.

The previous prime is 31440412103213. The next prime is 31440412103263. The reversal of 31440412103232 is 23230121404413.

It is a self number, because there is not a number n which added to its sum of digits gives 31440412103232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40740819 + ... + 41505362.

It is an arithmetic number, because the mean of its divisors is an integer number (814730678892).

Almost surely, 2^{31440412103232} is an apocalyptic number.

31440412103232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31440412103232 is an abundant number, since it is smaller than the sum of its proper divisors (59809423932672).

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

31440412103232 is a wasteful number, since it uses less digits than its factorization.

31440412103232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82246388 (or 82246378 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31440412103232 its reverse (23230121404413), we get a palindrome (54670533507645).

It can be divided in two parts, 314404 and 12103232, that added together give a triangular number (12417636 = T₄₉₈₃).

The spelling of 31440412103232 in words is "thirty-one trillion, four hundred forty billion, four hundred twelve million, one hundred three thousand, two hundred thirty-two".