2031131312 has 80 divisors (see below), whose sum is σ = 4769456640. Its totient is φ = 818532864.

The previous prime is 2031131309. The next prime is 2031131327. The reversal of 2031131312 is 2131311302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288053 + ... + 295019.

It is an arithmetic number, because the mean of its divisors is an integer number (59618208).

Almost surely, 2^2031131312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031131312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384728320).

2031131312 is an abundant number, since it is smaller than the sum of its proper divisors (2738325328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031131312 is a wasteful number, since it uses less digits than its factorization.

2031131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138 (or 7132 counting only the distinct ones).

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

The square root of 2031131312 is about 45068.0741989271. The cubic root of 2031131312 is about 1266.4245876561.

Adding to 2031131312 its reverse (2131311302), we get a palindrome (4162442614).

The spelling of 2031131312 in words is "two billion, thirty-one million, one hundred thirty-one thousand, three hundred twelve".