2309231912791 has 2 divisors, whose sum is σ = 2309231912792. Its totient is φ = 2309231912790.

The previous prime is 2309231912773. The next prime is 2309231912807. The reversal of 2309231912791 is 1972191329032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2309231912791 - 2¹¹ = 2309231910743 is a prime.

It is a super-4 number, since 4×2309231912791⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309231912591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154615956395 + 1154615956396.

It is an arithmetic number, because the mean of its divisors is an integer number (1154615956396).

Almost surely, 2^{2309231912791} is an apocalyptic number.

2309231912791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309231912791 is an equidigital number, since it uses as much as digits as its factorization.

2309231912791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 2309231912791 in words is "two trillion, three hundred nine billion, two hundred thirty-one million, nine hundred twelve thousand, seven hundred ninety-one".