20940569413051 has 2 divisors, whose sum is σ = 20940569413052. Its totient is φ = 20940569413050.

The previous prime is 20940569412991. The next prime is 20940569413067. The reversal of 20940569413051 is 15031496504902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20940569413051 - 2²⁹ = 20940032542139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20940569412986 and 20940569413004.

It is not a weakly prime, because it can be changed into another prime (20940560413051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470284706525 + 10470284706526.

It is an arithmetic number, because the mean of its divisors is an integer number (10470284706526).

Almost surely, 2^{20940569413051} is an apocalyptic number.

20940569413051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20940569413051 is an equidigital number, since it uses as much as digits as its factorization.

20940569413051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 20940569413051 in words is "twenty trillion, nine hundred forty billion, five hundred sixty-nine million, four hundred thirteen thousand, fifty-one".