231222311344291 has 2 divisors, whose sum is σ = 231222311344292. Its totient is φ = 231222311344290.

The previous prime is 231222311344253. The next prime is 231222311344351. The reversal of 231222311344291 is 192443113222132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231222311344291 is a prime.

It is not a weakly prime, because it can be changed into another prime (231222311344091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611155672145 + 115611155672146.

It is an arithmetic number, because the mean of its divisors is an integer number (115611155672146).

Almost surely, 2^{231222311344291} is an apocalyptic number.

231222311344291 is a deficient number, since it is larger than the sum of its proper divisors (1).

231222311344291 is an equidigital number, since it uses as much as digits as its factorization.

231222311344291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The spelling of 231222311344291 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, three hundred forty-four thousand, two hundred ninety-one".