31010231013 has 4 divisors (see below), whose sum is σ = 41346974688. Its totient is φ = 20673487340.

The previous prime is 31010230981. The next prime is 31010231017. The reversal of 31010231013 is 31013201013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31013201013 = 3 ⋅10337733671.

It is a cyclic number.

It is not a de Polignac number, because 31010231013 - 2⁵ = 31010230981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31010230983 and 31010231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010231017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5168371833 + ... + 5168371838.

It is an arithmetic number, because the mean of its divisors is an integer number (10336743672).

Almost surely, 2^31010231013 is an apocalyptic number.

It is an amenable number.

31010231013 is a deficient number, since it is larger than the sum of its proper divisors (10336743675).

31010231013 is a wasteful number, since it uses less digits than its factorization.

31010231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336743674.

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

Adding to 31010231013 its reverse (31013201013), we get a palindrome (62023432026).

The spelling of 31010231013 in words is "thirty-one billion, ten million, two hundred thirty-one thousand, thirteen".