3131135023 has 4 divisors (see below), whose sum is σ = 3134016640. Its totient is φ = 3128253408.

The previous prime is 3131134957. The next prime is 3131135041. The reversal of 3131135023 is 3205311313.

It is a happy number.

3131135023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131135023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131134985 and 3131135003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131135923) 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, 1439178 + ... + 1441351.

It is an arithmetic number, because the mean of its divisors is an integer number (783504160).

Almost surely, 2^3131135023 is an apocalyptic number.

3131135023 is a deficient number, since it is larger than the sum of its proper divisors (2881617).

3131135023 is a wasteful number, since it uses less digits than its factorization.

3131135023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881616.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 3131135023 is about 55956.5458458615. The cubic root of 3131135023 is about 1462.9649858847.

Adding to 3131135023 its reverse (3205311313), we get a palindrome (6336446336).

The spelling of 3131135023 in words is "three billion, one hundred thirty-one million, one hundred thirty-five thousand, twenty-three".