31102001313 has 16 divisors (see below), whose sum is σ = 43922439936. Its totient is φ = 19508878080.

The previous prime is 31102001311. The next prime is 31102001353. The reversal of 31102001313 is 31310020113.

It is not a de Polignac number, because 31102001313 - 2¹ = 31102001311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31102001292 and 31102001301.

It is not an unprimeable number, because it can be changed into a prime (31102001311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72168 + ... + 259638.

It is an arithmetic number, because the mean of its divisors is an integer number (2745152496).

Almost surely, 2^31102001313 is an apocalyptic number.

It is an amenable number.

31102001313 is a deficient number, since it is larger than the sum of its proper divisors (12820438623).

31102001313 is a wasteful number, since it uses less digits than its factorization.

31102001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190744.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31102001313 its reverse (31310020113), we get a palindrome (62412021426).

The spelling of 31102001313 in words is "thirty-one billion, one hundred two million, one thousand, three hundred thirteen".