20315113246413 has 64 divisors (see below), whose sum is σ = 30626772503040. Its totient is φ = 13306887360000.

The previous prime is 20315113246409. The next prime is 20315113246457. The reversal of 20315113246413 is 31464231151302.

20315113246413 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 5 + 1 + 1 + 3 + 2 + 4 + 641 + 3 = 666.

It is not a de Polignac number, because 20315113246413 - 2² = 20315113246409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315113246513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1358772088 + ... + 1358787038.

It is an arithmetic number, because the mean of its divisors is an integer number (478543320360).

Almost surely, 2^{20315113246413} is an apocalyptic number.

It is an amenable number.

20315113246413 is a deficient number, since it is larger than the sum of its proper divisors (10311659256627).

20315113246413 is a wasteful number, since it uses less digits than its factorization.

20315113246413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18835 (or 18829 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 20315113246413 its reverse (31464231151302), we get a palindrome (51779344397715).

The spelling of 20315113246413 in words is "twenty trillion, three hundred fifteen billion, one hundred thirteen million, two hundred forty-six thousand, four hundred thirteen".