21063256032911 has 2 divisors, whose sum is σ = 21063256032912. Its totient is φ = 21063256032910.

The previous prime is 21063256032887. The next prime is 21063256032977. The reversal of 21063256032911 is 11923065236012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21063256032911 - 2²⁶ = 21063188924047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21063256052911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10531628016455 + 10531628016456.

It is an arithmetic number, because the mean of its divisors is an integer number (10531628016456).

Almost surely, 2^{21063256032911} is an apocalyptic number.

21063256032911 is a deficient number, since it is larger than the sum of its proper divisors (1).

21063256032911 is an equidigital number, since it uses as much as digits as its factorization.

21063256032911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 21063256032911 in words is "twenty-one trillion, sixty-three billion, two hundred fifty-six million, thirty-two thousand, nine hundred eleven".