122813465557 has 4 divisors (see below), whose sum is σ = 122816591200. Its totient is φ = 122810339916.

The previous prime is 122813465549. The next prime is 122813465587. The reversal of 122813465557 is 755564318221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 755564318221 = 379 ⋅1993573399.

It is a cyclic number.

It is not a de Polignac number, because 122813465557 - 2³ = 122813465549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122813465557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122813465527) 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, 1503123 + ... + 1582720.

It is an arithmetic number, because the mean of its divisors is an integer number (30704147800).

Almost surely, 2^122813465557 is an apocalyptic number.

It is an amenable number.

122813465557 is a deficient number, since it is larger than the sum of its proper divisors (3125643).

122813465557 is an equidigital number, since it uses as much as digits as its factorization.

122813465557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125642.

The product of its digits is 2016000, while the sum is 49.

The spelling of 122813465557 in words is "one hundred twenty-two billion, eight hundred thirteen million, four hundred sixty-five thousand, five hundred fifty-seven".