2131312300 has 36 divisors (see below), whose sum is σ = 4980715936. Its totient is φ = 786945600.

The previous prime is 2131312297. The next prime is 2131312303. The reversal of 2131312300 is 32131312.

It is an interprime number because it is at equal distance from previous prime (2131312297) and next prime (2131312303).

It is not an unprimeable number, because it can be changed into a prime (2131312303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818436 + ... + 821035.

Almost surely, 2^2131312300 is an apocalyptic number.

2131312300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131312300 is an abundant number, since it is smaller than the sum of its proper divisors (2849403636).

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

2131312300 is a wasteful number, since it uses less digits than its factorization.

2131312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639498 (or 1639491 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131312300 is about 46166.1380234474. The cubic root of 2131312300 is about 1286.9125330693.

Adding to 2131312300 its reverse (32131312), we get a palindrome (2163443612).

The spelling of 2131312300 in words is "two billion, one hundred thirty-one million, three hundred twelve thousand, three hundred".