21926490134323 has 2 divisors, whose sum is σ = 21926490134324. Its totient is φ = 21926490134322.

The previous prime is 21926490134303. The next prime is 21926490134363. The reversal of 21926490134323 is 32343109462912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21926490134323 - 2³⁷ = 21789051180851 is a prime.

It is a super-2 number, since 2×21926490134323² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21926490134303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10963245067161 + 10963245067162.

It is an arithmetic number, because the mean of its divisors is an integer number (10963245067162).

Almost surely, 2^{21926490134323} is an apocalyptic number.

21926490134323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21926490134323 is an equidigital number, since it uses as much as digits as its factorization.

21926490134323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 21926490134323 in words is "twenty-one trillion, nine hundred twenty-six billion, four hundred ninety million, one hundred thirty-four thousand, three hundred twenty-three".