21713377542111 has 12 divisors (see below), whose sum is σ = 31364127071992. Its totient is φ = 14475419099856.

The previous prime is 21713377542091. The next prime is 21713377542119. The reversal of 21713377542111 is 11124577331712.

It is a happy number.

21713377542111 is a `hidden beast` number, since 2 + 1 + 7 + 1 + 33 + 77 + 542 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 21713377542111 - 2¹⁸ = 21713377279967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21713377542119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12995941 + ... + 14571246.

Almost surely, 2^{21713377542111} is an apocalyptic number.

21713377542111 is a deficient number, since it is larger than the sum of its proper divisors (9650749529881).

21713377542111 is a wasteful number, since it uses less digits than its factorization.

21713377542111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27654710 (or 27654707 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The spelling of 21713377542111 in words is "twenty-one trillion, seven hundred thirteen billion, three hundred seventy-seven million, five hundred forty-two thousand, one hundred eleven".