21060316079053 has 2 divisors, whose sum is σ = 21060316079054. Its totient is φ = 21060316079052.

The previous prime is 21060316079039. The next prime is 21060316079059. The reversal of 21060316079053 is 35097061306012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15604854288804 + 5455461790249 = 3950298^2 + 2335693^2 .

It is a cyclic number.

It is not a de Polignac number, because 21060316079053 - 2⁵ = 21060316079021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21060316079059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10530158039526 + 10530158039527.

It is an arithmetic number, because the mean of its divisors is an integer number (10530158039527).

Almost surely, 2^{21060316079053} is an apocalyptic number.

It is an amenable number.

21060316079053 is a deficient number, since it is larger than the sum of its proper divisors (1).

21060316079053 is an equidigital number, since it uses as much as digits as its factorization.

21060316079053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 21060316079053 in words is "twenty-one trillion, sixty billion, three hundred sixteen million, seventy-nine thousand, fifty-three".