20940712059853 has 2 divisors, whose sum is σ = 20940712059854. Its totient is φ = 20940712059852.

The previous prime is 20940712059739. The next prime is 20940712059877. The reversal of 20940712059853 is 35895021704902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20887111938564 + 53600121289 = 4570242^2 + 231517^2 .

It is a cyclic number.

It is not a de Polignac number, because 20940712059853 - 2²⁵ = 20940678505421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20940712059794 and 20940712059803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20940712009853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470356029926 + 10470356029927.

It is an arithmetic number, because the mean of its divisors is an integer number (10470356029927).

Almost surely, 2^{20940712059853} is an apocalyptic number.

It is an amenable number.

20940712059853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20940712059853 is an equidigital number, since it uses as much as digits as its factorization.

20940712059853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 20940712059853 in words is "twenty trillion, nine hundred forty billion, seven hundred twelve million, fifty-nine thousand, eight hundred fifty-three".