20315304002154 has 16 divisors (see below), whose sum is σ = 46434980576448. Its totient is φ = 5804372572032.

The previous prime is 20315304002107. The next prime is 20315304002167. The reversal of 20315304002154 is 45120040351302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241848857127 + ... + 241848857210.

It is an arithmetic number, because the mean of its divisors is an integer number (2902186286028).

Almost surely, 2^{20315304002154} is an apocalyptic number.

20315304002154 is an abundant number, since it is smaller than the sum of its proper divisors (26119676574294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315304002154 is a wasteful number, since it uses less digits than its factorization.

20315304002154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483697714349.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 20315304002154 its reverse (45120040351302), we get a palindrome (65435344353456).

The spelling of 20315304002154 in words is "twenty trillion, three hundred fifteen billion, three hundred four million, two thousand, one hundred fifty-four".