315236632513 has 4 divisors (see below), whose sum is σ = 343894508208. Its totient is φ = 286578756820.

The previous prime is 315236632427. The next prime is 315236632537.

315236632513 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315236632513 - 2²⁵ = 315203078081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315236632553) 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 3 ways as a sum of consecutive naturals, for example, 14328937831 + ... + 14328937852.

It is an arithmetic number, because the mean of its divisors is an integer number (85973627052).

Almost surely, 2^315236632513 is an apocalyptic number.

It is an amenable number.

315236632513 is a deficient number, since it is larger than the sum of its proper divisors (28657875695).

315236632513 is a wasteful number, since it uses less digits than its factorization.

315236632513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28657875694.

The product of its digits is 291600, while the sum is 40.

It can be divided in two parts, 315236 and 632513, that added together give a palindrome (947749).

The spelling of 315236632513 in words is "three hundred fifteen billion, two hundred thirty-six million, six hundred thirty-two thousand, five hundred thirteen".