31301112400000 has 96 divisors (see below), whose sum is σ = 77942118455460. Its totient is φ = 12520444800000.

The previous prime is 31301112399983. The next prime is 31301112400031. The reversal of 31301112400000 is 421110313.

It can be written as a sum of positive squares in 6 ways, for example, as 348090560064 + 30953021839936 = 589992^2 + 5563544^2 .

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

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, 38726391 + ... + 39526390.

Almost surely, 2^{31301112400000} is an apocalyptic number.

It is an amenable number.

31301112400000 is an abundant number, since it is smaller than the sum of its proper divisors (46641006055460).

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

31301112400000 is an frugal number, since it uses more digits than its factorization.

31301112400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78252820 (or 78252788 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31301112400000 its reverse (421110313), we get a palindrome (31301533510313).

The spelling of 31301112400000 in words is "thirty-one trillion, three hundred one billion, one hundred twelve million, four hundred thousand".