21202330112923 has 2 divisors, whose sum is σ = 21202330112924. Its totient is φ = 21202330112922.

The previous prime is 21202330112911. The next prime is 21202330112969. The reversal of 21202330112923 is 32921103320212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21202330112923 - 2²⁹ = 21201793242011 is a prime.

It is a super-2 number, since 2×21202330112923² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21202330112423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601165056461 + 10601165056462.

It is an arithmetic number, because the mean of its divisors is an integer number (10601165056462).

Almost surely, 2^{21202330112923} is an apocalyptic number.

21202330112923 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202330112923 is an equidigital number, since it uses as much as digits as its factorization.

21202330112923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 21202330112923 in words is "twenty-one trillion, two hundred two billion, three hundred thirty million, one hundred twelve thousand, nine hundred twenty-three".