2131311250 has 40 divisors (see below), whose sum is σ = 4229967852. Its totient is φ = 802368000.

The previous prime is 2131311179. The next prime is 2131311251. The reversal of 2131311250 is 521131312.

It can be written as a sum of positive squares in 10 ways, for example, as 76230361 + 2055080889 = 8731^2 + 45333^2 .

It is not an unprimeable number, because it can be changed into a prime (2131311251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28899 + ... + 71398.

Almost surely, 2^2131311250 is an apocalyptic number.

2131311250 is a deficient number, since it is larger than the sum of its proper divisors (2098656602).

2131311250 is a wasteful number, since it uses less digits than its factorization.

2131311250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100336 (or 100321 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2131311250 is about 46166.1266514747. The cubic root of 2131311250 is about 1286.9123217349.

Adding to 2131311250 its reverse (521131312), we get a palindrome (2652442562).

The spelling of 2131311250 in words is "two billion, one hundred thirty-one million, three hundred eleven thousand, two hundred fifty".