20501301031105 has 16 divisors (see below), whose sum is σ = 24745272189120. Its totient is φ = 16305279984832.

The previous prime is 20501301031067. The next prime is 20501301031163. The reversal of 20501301031105 is 50113010310502.

It is a cyclic number.

It is not a de Polignac number, because 20501301031105 - 2⁹ = 20501301030593 is a prime.

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, 630807 + ... + 6434323.

It is an arithmetic number, because the mean of its divisors is an integer number (1546579511820).

Almost surely, 2^{20501301031105} is an apocalyptic number.

It is an amenable number.

20501301031105 is a deficient number, since it is larger than the sum of its proper divisors (4243971158015).

20501301031105 is a wasteful number, since it uses less digits than its factorization.

20501301031105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807648.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 20501301031105 its reverse (50113010310502), we get a palindrome (70614311341607).

The spelling of 20501301031105 in words is "twenty trillion, five hundred one billion, three hundred one million, thirty-one thousand, one hundred five".