21023010300239 has 2 divisors, whose sum is σ = 21023010300240. Its totient is φ = 21023010300238.

The previous prime is 21023010300181. The next prime is 21023010300287. The reversal of 21023010300239 is 93200301032012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21023010300239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21023010305239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511505150119 + 10511505150120.

It is an arithmetic number, because the mean of its divisors is an integer number (10511505150120).

Almost surely, 2^{21023010300239} is an apocalyptic number.

21023010300239 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023010300239 is an equidigital number, since it uses as much as digits as its factorization.

21023010300239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 21023010300239 in words is "twenty-one trillion, twenty-three billion, ten million, three hundred thousand, two hundred thirty-nine".