315212535131 has 8 divisors (see below), whose sum is σ = 340437927984. Its totient is φ = 290126895840.

The previous prime is 315212535103. The next prime is 315212535163. The reversal of 315212535131 is 131535212513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315212535131 is a prime.

It is a super-2 number, since 2×315212535131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315212535191) by changing a digit.

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, 34933700 + ... + 34942721.

It is an arithmetic number, because the mean of its divisors is an integer number (42554740998).

Almost surely, 2^315212535131 is an apocalyptic number.

315212535131 is a deficient number, since it is larger than the sum of its proper divisors (25225392853).

315212535131 is a wasteful number, since it uses less digits than its factorization.

315212535131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69876781.

The product of its digits is 13500, while the sum is 32.

Adding to 315212535131 its reverse (131535212513), we get a palindrome (446747747644).

It can be divided in two parts, 31521 and 2535131, that added together give a palindrome (2566652).

The spelling of 315212535131 in words is "three hundred fifteen billion, two hundred twelve million, five hundred thirty-five thousand, one hundred thirty-one".