31004040212432 has 80 divisors (see below), whose sum is σ = 72473314506240. Its totient is φ = 12551829289344.

The previous prime is 31004040212399. The next prime is 31004040212447. The reversal of 31004040212432 is 23421204040013.

It is a super-2 number, since 2×31004040212432² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20255198 + ... + 21732029.

It is an arithmetic number, because the mean of its divisors is an integer number (905916431328).

Almost surely, 2^{31004040212432} is an apocalyptic number.

It is an amenable number.

31004040212432 is an abundant number, since it is smaller than the sum of its proper divisors (41469274293808).

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

31004040212432 is a wasteful number, since it uses less digits than its factorization.

31004040212432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41987608 (or 41987602 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31004040212432 its reverse (23421204040013), we get a palindrome (54425244252445).

The spelling of 31004040212432 in words is "thirty-one trillion, four billion, forty million, two hundred twelve thousand, four hundred thirty-two".