20962789231 has 2 divisors, whose sum is σ = 20962789232. Its totient is φ = 20962789230.

The previous prime is 20962789163. The next prime is 20962789259. The reversal of 20962789231 is 13298726902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20962789231 - 2²⁷ = 20828571503 is a prime.

It is a super-2 number, since 2×20962789231² (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 (20962789931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10481394615 + 10481394616.

It is an arithmetic number, because the mean of its divisors is an integer number (10481394616).

Almost surely, 2^20962789231 is an apocalyptic number.

20962789231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20962789231 is an equidigital number, since it uses as much as digits as its factorization.

20962789231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 20962789231 in words is "twenty billion, nine hundred sixty-two million, seven hundred eighty-nine thousand, two hundred thirty-one".