31301112431000 has 64 divisors (see below), whose sum is σ = 74626576858080. Its totient is φ = 12284210140800.

The previous prime is 31301112430979. The next prime is 31301112431011. The reversal of 31301112431000 is 13421110313.

It is a super-2 number, since 2×31301112431000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295240514 + ... + 295346513.

Almost surely, 2^{31301112431000} is an apocalyptic number.

It is an amenable number.

31301112431000 is an abundant number, since it is smaller than the sum of its proper divisors (43325464427080).

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

31301112431000 is a wasteful number, since it uses less digits than its factorization.

31301112431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590587101 (or 590587087 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31301112431000 its reverse (13421110313), we get a palindrome (31314533541313).

The spelling of 31301112431000 in words is "thirty-one trillion, three hundred one billion, one hundred twelve million, four hundred thirty-one thousand".