31123344440232 has 48 divisors (see below), whose sum is σ = 91955335848480. Its totient is φ = 9431316496800.

The previous prime is 31123344440191. The next prime is 31123344440263. The reversal of 31123344440232 is 23204444332113.

31123344440232 is a `hidden beast` number, since 3 + 1 + 12 + 334 + 44 + 40 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19648575244 + ... + 19648576827.

It is an arithmetic number, because the mean of its divisors is an integer number (1915736163510).

Almost surely, 2^{31123344440232} is an apocalyptic number.

It is an amenable number.

31123344440232 is an abundant number, since it is smaller than the sum of its proper divisors (60831991408248).

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

31123344440232 is a wasteful number, since it uses less digits than its factorization.

31123344440232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39297152094 (or 39297152087 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 31123344440232 its reverse (23204444332113), we get a palindrome (54327788772345).

The spelling of 31123344440232 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred forty-four million, four hundred forty thousand, two hundred thirty-two".