122403215125291 has 2 divisors, whose sum is σ = 122403215125292. Its totient is φ = 122403215125290.

The previous prime is 122403215125277. The next prime is 122403215125297. The reversal of 122403215125291 is 192521512304221.

It is a strong prime.

It is an emirp because it is prime and its reverse (192521512304221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122403215125291 - 2¹⁵ = 122403215092523 is a prime.

It is not a weakly prime, because it can be changed into another prime (122403215125297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201607562645 + 61201607562646.

It is an arithmetic number, because the mean of its divisors is an integer number (61201607562646).

Almost surely, 2^{122403215125291} is an apocalyptic number.

122403215125291 is a deficient number, since it is larger than the sum of its proper divisors (1).

122403215125291 is an equidigital number, since it uses as much as digits as its factorization.

122403215125291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 122403215125291 in words is "one hundred twenty-two trillion, four hundred three billion, two hundred fifteen million, one hundred twenty-five thousand, two hundred ninety-one".