31031131100268 has 96 divisors (see below), whose sum is σ = 79079087678976. Its totient is φ = 9413675661312.

The previous prime is 31031131100267. The next prime is 31031131100273. The reversal of 31031131100268 is 86200113113013.

It is not an unprimeable number, because it can be changed into a prime (31031131100267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81055 + ... + 7878377.

It is an arithmetic number, because the mean of its divisors is an integer number (823740496656).

Almost surely, 2^{31031131100268} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31031131100268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39539543839488).

31031131100268 is an abundant number, since it is smaller than the sum of its proper divisors (48047956578708).

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

31031131100268 is a wasteful number, since it uses less digits than its factorization.

31031131100268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797703 (or 7797701 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 31031131100268 in words is "thirty-one trillion, thirty-one billion, one hundred thirty-one million, one hundred thousand, two hundred sixty-eight".