315100502120 has 32 divisors (see below), whose sum is σ = 716942161800. Its totient is φ = 124624017408.

The previous prime is 315100502117. The next prime is 315100502161. The reversal of 315100502120 is 21205001513.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 260726656996 + 54373845124 = 510614^2 + 233182^2 .

It is a super-2 number, since 2×315100502120² (a number of 24 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 315100502092 and 315100502101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44252129 + ... + 44259248.

Almost surely, 2^315100502120 is an apocalyptic number.

It is an amenable number.

315100502120 is an abundant number, since it is smaller than the sum of its proper divisors (401841659680).

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

315100502120 is a wasteful number, since it uses less digits than its factorization.

315100502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88511477 (or 88511473 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 315100502120 its reverse (21205001513), we get a palindrome (336305503633).

The spelling of 315100502120 in words is "three hundred fifteen billion, one hundred million, five hundred two thousand, one hundred twenty".