20315111304006 has 32 divisors (see below), whose sum is σ = 45168365162880. Its totient is φ = 6768152761608.

The previous prime is 20315111303909. The next prime is 20315111304017. The reversal of 20315111304006 is 60040311151302.

It is a happy number.

20315111304006 is a `hidden beast` number, since 203 + 1 + 51 + 1 + 1 + 3 + 0 + 400 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 98535136 + ... + 98741091.

It is an arithmetic number, because the mean of its divisors is an integer number (1411511411340).

Almost surely, 2^{20315111304006} is an apocalyptic number.

20315111304006 is an abundant number, since it is smaller than the sum of its proper divisors (24853253858874).

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

20315111304006 is a wasteful number, since it uses less digits than its factorization.

20315111304006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197278145 (or 197278139 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 20315111304006 its reverse (60040311151302), we get a palindrome (80355422455308).

The spelling of 20315111304006 in words is "twenty trillion, three hundred fifteen billion, one hundred eleven million, three hundred four thousand, six".