21002310059 has 2 divisors, whose sum is σ = 21002310060. Its totient is φ = 21002310058.

The previous prime is 21002310031. The next prime is 21002310089. The reversal of 21002310059 is 95001320012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21002310059 - 2⁸ = 21002309803 is a prime.

It is not a weakly prime, because it can be changed into another prime (21002310089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501155029 + 10501155030.

It is an arithmetic number, because the mean of its divisors is an integer number (10501155030).

Almost surely, 2^21002310059 is an apocalyptic number.

21002310059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002310059 is an equidigital number, since it uses as much as digits as its factorization.

21002310059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 21002310059 in words is "twenty-one billion, two million, three hundred ten thousand, fifty-nine".