21300224039 has 2 divisors, whose sum is σ = 21300224040. Its totient is φ = 21300224038.

The previous prime is 21300224027. The next prime is 21300224059. The reversal of 21300224039 is 93042200312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21300224039 is a prime.

It is a super-2 number, since 2×21300224039² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21300223999 and 21300224017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300224059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650112019 + 10650112020.

It is an arithmetic number, because the mean of its divisors is an integer number (10650112020).

Almost surely, 2^21300224039 is an apocalyptic number.

21300224039 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300224039 is an equidigital number, since it uses as much as digits as its factorization.

21300224039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 21300224039 in words is "twenty-one billion, three hundred million, two hundred twenty-four thousand, thirty-nine".