20202231311051 has 2 divisors, whose sum is σ = 20202231311052. Its totient is φ = 20202231311050.

The previous prime is 20202231310997. The next prime is 20202231311063. The reversal of 20202231311051 is 15011313220202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202231311051 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202231311551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101115655525 + 10101115655526.

It is an arithmetic number, because the mean of its divisors is an integer number (10101115655526).

Almost surely, 2^{20202231311051} is an apocalyptic number.

20202231311051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202231311051 is an equidigital number, since it uses as much as digits as its factorization.

20202231311051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20202231311051 its reverse (15011313220202), we get a palindrome (35213544531253).

The spelling of 20202231311051 in words is "twenty trillion, two hundred two billion, two hundred thirty-one million, three hundred eleven thousand, fifty-one".