21230023022291 has 2 divisors, whose sum is σ = 21230023022292. Its totient is φ = 21230023022290.

The previous prime is 21230023022249. The next prime is 21230023022311. The reversal of 21230023022291 is 19222032003212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21230023022291 - 2¹⁰ = 21230023021267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21230023022891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615011511145 + 10615011511146.

It is an arithmetic number, because the mean of its divisors is an integer number (10615011511146).

Almost surely, 2^{21230023022291} is an apocalyptic number.

21230023022291 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230023022291 is an equidigital number, since it uses as much as digits as its factorization.

21230023022291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 21230023022291 in words is "twenty-one trillion, two hundred thirty billion, twenty-three million, twenty-two thousand, two hundred ninety-one".