20315312013026 has 32 divisors (see below), whose sum is σ = 32823508227840. Its totient is φ = 9399042518544.

The previous prime is 20315312013001. The next prime is 20315312013077. The reversal of 20315312013026 is 62031021351302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20315312013026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92772101 + ... + 92990823.

It is an arithmetic number, because the mean of its divisors is an integer number (1025734632120).

Almost surely, 2^{20315312013026} is an apocalyptic number.

20315312013026 is a deficient number, since it is larger than the sum of its proper divisors (12508196214814).

20315312013026 is a wasteful number, since it uses less digits than its factorization.

20315312013026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275630.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 20315312013026 its reverse (62031021351302), we get a palindrome (82346333364328).

The spelling of 20315312013026 in words is "twenty trillion, three hundred fifteen billion, three hundred twelve million, thirteen thousand, twenty-six".