31311340100 has 36 divisors (see below), whose sum is σ = 69525747984. Its totient is φ = 12233266080.

The previous prime is 31311340097. The next prime is 31311340141. The reversal of 31311340100 is 104311313.

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, 3636554 + ... + 3645153.

Almost surely, 2^31311340100 is an apocalyptic number.

It is an amenable number.

31311340100 is an abundant number, since it is smaller than the sum of its proper divisors (38214407884).

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

31311340100 is a wasteful number, since it uses less digits than its factorization.

31311340100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281764 (or 7281757 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31311340100 its reverse (104311313), we get a palindrome (31415651413).

The spelling of 31311340100 in words is "thirty-one billion, three hundred eleven million, three hundred forty thousand, one hundred".