12111112312291 has 2 divisors, whose sum is σ = 12111112312292. Its totient is φ = 12111112312290.

The previous prime is 12111112312283. The next prime is 12111112312337. The reversal of 12111112312291 is 19221321111121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111112312291 - 2³ = 12111112312283 is a prime.

It is not a weakly prime, because it can be changed into another prime (12111112312231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055556156145 + 6055556156146.

It is an arithmetic number, because the mean of its divisors is an integer number (6055556156146).

Almost surely, 2^{12111112312291} is an apocalyptic number.

12111112312291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111112312291 is an equidigital number, since it uses as much as digits as its factorization.

12111112312291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 28.

The spelling of 12111112312291 in words is "twelve trillion, one hundred eleven billion, one hundred twelve million, three hundred twelve thousand, two hundred ninety-one".