21433301339 has 2 divisors, whose sum is σ = 21433301340. Its totient is φ = 21433301338.

The previous prime is 21433301321. The next prime is 21433301369. The reversal of 21433301339 is 93310333412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21433301339 - 2²⁴ = 21416524123 is a prime.

It is not a weakly prime, because it can be changed into another prime (21433301369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10716650669 + 10716650670.

It is an arithmetic number, because the mean of its divisors is an integer number (10716650670).

Almost surely, 2^21433301339 is an apocalyptic number.

21433301339 is a deficient number, since it is larger than the sum of its proper divisors (1).

21433301339 is an equidigital number, since it uses as much as digits as its factorization.

21433301339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 21433301339 in words is "twenty-one billion, four hundred thirty-three million, three hundred one thousand, three hundred thirty-nine".