20005102615051 has 2 divisors, whose sum is σ = 20005102615052. Its totient is φ = 20005102615050.

The previous prime is 20005102615031. The next prime is 20005102615063. The reversal of 20005102615051 is 15051620150002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20005102615051 - 2⁷ = 20005102614923 is a prime.

It is not a weakly prime, because it can be changed into another prime (20005102615031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002551307525 + 10002551307526.

It is an arithmetic number, because the mean of its divisors is an integer number (10002551307526).

Almost surely, 2^{20005102615051} is an apocalyptic number.

20005102615051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20005102615051 is an equidigital number, since it uses as much as digits as its factorization.

20005102615051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 20005102615051 its reverse (15051620150002), we get a palindrome (35056722765053).

The spelling of 20005102615051 in words is "twenty trillion, five billion, one hundred two million, six hundred fifteen thousand, fifty-one".