315320105425 has 12 divisors (see below), whose sum is σ = 421073618140. Its totient is φ = 232851769920.

The previous prime is 315320105383. The next prime is 315320105431. The reversal of 315320105425 is 524501023513.

It can be written as a sum of positive squares in 6 ways, for example, as 2852521281 + 312467584144 = 53409^2 + 558988^2 .

It is a de Polignac number, because none of the positive numbers 2^k-315320105425 is a prime.

It is a super-2 number, since 2×315320105425² (a number of 24 digits) contains 22 as substring.

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, 485107530 + ... + 485108179.

Almost surely, 2^315320105425 is an apocalyptic number.

It is an amenable number.

315320105425 is a deficient number, since it is larger than the sum of its proper divisors (105753512715).

315320105425 is a wasteful number, since it uses less digits than its factorization.

315320105425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970215732 (or 970215727 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 315320105425 its reverse (524501023513), we get a palindrome (839821128938).

The spelling of 315320105425 in words is "three hundred fifteen billion, three hundred twenty million, one hundred five thousand, four hundred twenty-five".