3813731131 has 16 divisors (see below), whose sum is σ = 4589798400. Its totient is φ = 3098085408.

The previous prime is 3813731099. The next prime is 3813731137. The reversal of 3813731131 is 1311373183.

It is a cyclic number.

It is not a de Polignac number, because 3813731131 - 2⁵ = 3813731099 is a prime.

It is a super-2 number, since 2×3813731131² = 29089090279117078322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3813731093 and 3813731102.

It is not an unprimeable number, because it can be changed into a prime (3813731137) 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, 91111 + ... + 126208.

It is an arithmetic number, because the mean of its divisors is an integer number (286862400).

Almost surely, 2^3813731131 is an apocalyptic number.

3813731131 is a deficient number, since it is larger than the sum of its proper divisors (776067269).

3813731131 is a wasteful number, since it uses less digits than its factorization.

3813731131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217458.

The product of its digits is 4536, while the sum is 31.

The square root of 3813731131 is about 61755.4137788745. The cubic root of 3813731131 is about 1562.3680792815.

The spelling of 3813731131 in words is "three billion, eight hundred thirteen million, seven hundred thirty-one thousand, one hundred thirty-one".