122120015903 has 2 divisors, whose sum is σ = 122120015904. Its totient is φ = 122120015902.

The previous prime is 122120015891. The next prime is 122120015939. The reversal of 122120015903 is 309510021221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122120015903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122120015603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060007951 + 61060007952.

It is an arithmetic number, because the mean of its divisors is an integer number (61060007952).

Almost surely, 2^122120015903 is an apocalyptic number.

122120015903 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120015903 is an equidigital number, since it uses as much as digits as its factorization.

122120015903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 122120015903 in words is "one hundred twenty-two billion, one hundred twenty million, fifteen thousand, nine hundred three".