122158578860231 has 2 divisors, whose sum is σ = 122158578860232. Its totient is φ = 122158578860230.

The previous prime is 122158578860203. The next prime is 122158578860249. The reversal of 122158578860231 is 132068875851221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122158578860231 - 2⁴² = 117760532349127 is a prime.

It is a super-3 number, since 3×122158578860231³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122158578868231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61079289430115 + 61079289430116.

It is an arithmetic number, because the mean of its divisors is an integer number (61079289430116).

Almost surely, 2^{122158578860231} is an apocalyptic number.

122158578860231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122158578860231 is an equidigital number, since it uses as much as digits as its factorization.

122158578860231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 122158578860231 in words is "one hundred twenty-two trillion, one hundred fifty-eight billion, five hundred seventy-eight million, eight hundred sixty thousand, two hundred thirty-one".