31031204440412 has 96 divisors (see below), whose sum is σ = 64454716569600. Its totient is φ = 12930728428800.

The previous prime is 31031204440399. The next prime is 31031204440451. The reversal of 31031204440412 is 21404440213013.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 31 ways as a sum of consecutive naturals, for example, 5304362 + ... + 9497297.

It is an arithmetic number, because the mean of its divisors is an integer number (671403297600).

Almost surely, 2^{31031204440412} is an apocalyptic number.

It is an amenable number.

31031204440412 is an abundant number, since it is smaller than the sum of its proper divisors (33423512129188).

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

31031204440412 is a wasteful number, since it uses less digits than its factorization.

31031204440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14801787 (or 14801785 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31031204440412 its reverse (21404440213013), we get a palindrome (52435644653425).

The spelling of 31031204440412 in words is "thirty-one trillion, thirty-one billion, two hundred four million, four hundred forty thousand, four hundred twelve".