2031131308 has 24 divisors (see below), whose sum is σ = 3654401184. Its totient is φ = 987196800.

The previous prime is 2031131303. The next prime is 2031131309. The reversal of 2031131308 is 8031311302.

It is not an unprimeable number, because it can be changed into a prime (2031131303) 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, 23073 + ... + 67783.

It is an arithmetic number, because the mean of its divisors is an integer number (152266716).

Almost surely, 2^2031131308 is an apocalyptic number.

It is an amenable number.

2031131308 is a deficient number, since it is larger than the sum of its proper divisors (1623269876).

2031131308 is a wasteful number, since it uses less digits than its factorization.

2031131308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45033 (or 45031 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2031131308 is about 45068.0741545498. The cubic root of 2031131308 is about 1266.4245868248.

The spelling of 2031131308 in words is "two billion, thirty-one million, one hundred thirty-one thousand, three hundred eight".