21332130959 has 2 divisors, whose sum is σ = 21332130960. Its totient is φ = 21332130958.

The previous prime is 21332130943. The next prime is 21332131031. The reversal of 21332130959 is 95903123312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21332130959 - 2⁴ = 21332130943 is a prime.

It is a super-2 number, since 2×21332130959² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332130059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666065479 + 10666065480.

It is an arithmetic number, because the mean of its divisors is an integer number (10666065480).

Almost surely, 2^21332130959 is an apocalyptic number.

21332130959 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332130959 is an equidigital number, since it uses as much as digits as its factorization.

21332130959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The spelling of 21332130959 in words is "twenty-one billion, three hundred thirty-two million, one hundred thirty thousand, nine hundred fifty-nine".