23027818291 has 2 divisors, whose sum is σ = 23027818292. Its totient is φ = 23027818290.

The previous prime is 23027818277. The next prime is 23027818343. The reversal of 23027818291 is 19281872032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23027818291 is a prime.

It is not a weakly prime, because it can be changed into another prime (23027818241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11513909145 + 11513909146.

It is an arithmetic number, because the mean of its divisors is an integer number (11513909146).

Almost surely, 2^23027818291 is an apocalyptic number.

23027818291 is a deficient number, since it is larger than the sum of its proper divisors (1).

23027818291 is an equidigital number, since it uses as much as digits as its factorization.

23027818291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 23027818291 in words is "twenty-three billion, twenty-seven million, eight hundred eighteen thousand, two hundred ninety-one".