31012104400 has 60 divisors (see below), whose sum is σ = 74835022752. Its totient is φ = 12350158720.

The previous prime is 31012104341. The next prime is 31012104427. The reversal of 31012104400 is 440121013.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79972 + ... + 261571.

Almost surely, 2^31012104400 is an apocalyptic number.

It is an amenable number.

31012104400 is an abundant number, since it is smaller than the sum of its proper divisors (43822918352).

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

31012104400 is a wasteful number, since it uses less digits than its factorization.

31012104400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341788 (or 341777 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31012104400 its reverse (440121013), we get a palindrome (31452225413).

The spelling of 31012104400 in words is "thirty-one billion, twelve million, one hundred four thousand, four hundred".