21632142157111 has 2 divisors, whose sum is σ = 21632142157112. Its totient is φ = 21632142157110.

The previous prime is 21632142157097. The next prime is 21632142157127. The reversal of 21632142157111 is 11175124123612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21632142157111 - 2³⁷ = 21494703203639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21632142157811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10816071078555 + 10816071078556.

It is an arithmetic number, because the mean of its divisors is an integer number (10816071078556).

Almost surely, 2^{21632142157111} is an apocalyptic number.

21632142157111 is a deficient number, since it is larger than the sum of its proper divisors (1).

21632142157111 is an equidigital number, since it uses as much as digits as its factorization.

21632142157111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The spelling of 21632142157111 in words is "twenty-one trillion, six hundred thirty-two billion, one hundred forty-two million, one hundred fifty-seven thousand, one hundred eleven".