21310023233029 has 2 divisors, whose sum is σ = 21310023233030. Its totient is φ = 21310023233028.

The previous prime is 21310023232999. The next prime is 21310023233069. The reversal of 21310023233029 is 92033232001312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11606953982404 + 9703069250625 = 3406898^2 + 3114975^2 .

It is a cyclic number.

It is not a de Polignac number, because 21310023233029 - 2²⁵ = 21309989678597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21310023233069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655011616514 + 10655011616515.

It is an arithmetic number, because the mean of its divisors is an integer number (10655011616515).

Almost surely, 2^{21310023233029} is an apocalyptic number.

It is an amenable number.

21310023233029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21310023233029 is an equidigital number, since it uses as much as digits as its factorization.

21310023233029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 21310023233029 in words is "twenty-one trillion, three hundred ten billion, twenty-three million, two hundred thirty-three thousand, twenty-nine".