21373606375101 has 12 divisors (see below), whose sum is σ = 31029702658812. Its totient is φ = 14176740606336.

The previous prime is 21373606375081. The next prime is 21373606375133. The reversal of 21373606375101 is 10157360637312.

21373606375101 is a `hidden beast` number, since 2 + 1 + 3 + 7 + 3 + 6 + 0 + 637 + 5 + 1 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14631015152601 + 6742591222500 = 3825051^2 + 2596650^2 .

It is not a de Polignac number, because 21373606375101 - 2¹³ = 21373606366909 is a prime.

It is a super-2 number, since 2×21373606375101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21373606375141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6027523996 + ... + 6027527541.

It is an arithmetic number, because the mean of its divisors is an integer number (2585808554901).

Almost surely, 2^{21373606375101} is an apocalyptic number.

It is an amenable number.

21373606375101 is a deficient number, since it is larger than the sum of its proper divisors (9656096283711).

21373606375101 is a wasteful number, since it uses less digits than its factorization.

21373606375101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12055051740 (or 12055051737 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 21373606375101 in words is "twenty-one trillion, three hundred seventy-three billion, six hundred six million, three hundred seventy-five thousand, one hundred one".