122343100140991 has 2 divisors, whose sum is σ = 122343100140992. Its totient is φ = 122343100140990.

The previous prime is 122343100140977. The next prime is 122343100141021. The reversal of 122343100140991 is 199041001343221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122343100140991 - 2¹⁷ = 122343100009919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122343100140931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61171550070495 + 61171550070496.

It is an arithmetic number, because the mean of its divisors is an integer number (61171550070496).

Almost surely, 2^{122343100140991} is an apocalyptic number.

122343100140991 is a deficient number, since it is larger than the sum of its proper divisors (1).

122343100140991 is an equidigital number, since it uses as much as digits as its factorization.

122343100140991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 122343100140991 in words is "one hundred twenty-two trillion, three hundred forty-three billion, one hundred million, one hundred forty thousand, nine hundred ninety-one".