122403555151 has 4 divisors (see below), whose sum is σ = 122404282792. Its totient is φ = 122402827512.

The previous prime is 122403555119. The next prime is 122403555191. The reversal of 122403555151 is 151555304221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 151555304221 = 19 ⋅7976594959.

It is a cyclic number.

It is not a de Polignac number, because 122403555151 - 2⁵ = 122403555119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122403555191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32200 + ... + 495826.

It is an arithmetic number, because the mean of its divisors is an integer number (30601070698).

Almost surely, 2^122403555151 is an apocalyptic number.

122403555151 is a deficient number, since it is larger than the sum of its proper divisors (727641).

122403555151 is an equidigital number, since it uses as much as digits as its factorization.

122403555151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727640.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 122403555151 its reverse (151555304221), we get a palindrome (273958859372).

The spelling of 122403555151 in words is "one hundred twenty-two billion, four hundred three million, five hundred fifty-five thousand, one hundred fifty-one".