2031312131 has 8 divisors (see below), whose sum is σ = 2098736640. Its totient is φ = 1964805192.

The previous prime is 2031312103. The next prime is 2031312161. The reversal of 2031312131 is 1312131302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2031312131 - 2⁶ = 2031312067 is a prime.

It is a super-2 number, since 2×2031312131² = 8252457947095522322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031312161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224891 + ... + 233748.

It is an arithmetic number, because the mean of its divisors is an integer number (262342080).

Almost surely, 2^2031312131 is an apocalyptic number.

2031312131 is a deficient number, since it is larger than the sum of its proper divisors (67424509).

2031312131 is a wasteful number, since it uses less digits than its factorization.

2031312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458785.

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

The square root of 2031312131 is about 45070.0802195869. The cubic root of 2031312131 is about 1266.4621671783.

Adding to 2031312131 its reverse (1312131302), we get a palindrome (3343443433).

The spelling of 2031312131 in words is "two billion, thirty-one million, three hundred twelve thousand, one hundred thirty-one".