3130512500 has 36 divisors (see below), whose sum is σ = 6847585164. Its totient is φ = 1252200000.

The previous prime is 3130512491. The next prime is 3130512533. The reversal of 3130512500 is 52150313.

It can be written as a sum of positive squares in 6 ways, for example, as 1577837284 + 1552675216 = 39722^2 + 39404^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112721 + ... + 137720.

It is an arithmetic number, because the mean of its divisors is an integer number (190210699).

Almost surely, 2^3130512500 is an apocalyptic number.

It is an amenable number.

3130512500 is an abundant number, since it is smaller than the sum of its proper divisors (3717072664).

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

3130512500 is an equidigital number, since it uses as much as digits as its factorization.

3130512500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250470 (or 250448 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 3130512500 is about 55950.9830119186. The cubic root of 3130512500 is about 1462.8680253355.

Adding to 3130512500 its reverse (52150313), we get a palindrome (3182662813).

The spelling of 3130512500 in words is "three billion, one hundred thirty million, five hundred twelve thousand, five hundred".