123255555311 has 16 divisors (see below), whose sum is σ = 149351512320. Its totient is φ = 99298431360.

The previous prime is 123255555307. The next prime is 123255555317. The reversal of 123255555311 is 113555552321.

It is a cyclic number.

It is not a de Polignac number, because 123255555311 - 2² = 123255555307 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 (123255555317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612845 + ... + 788726.

It is an arithmetic number, because the mean of its divisors is an integer number (9334469520).

Almost surely, 2^123255555311 is an apocalyptic number.

123255555311 is a deficient number, since it is larger than the sum of its proper divisors (26095957009).

123255555311 is a wasteful number, since it uses less digits than its factorization.

123255555311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402334.

The product of its digits is 112500, while the sum is 38.

The spelling of 123255555311 in words is "one hundred twenty-three billion, two hundred fifty-five million, five hundred fifty-five thousand, three hundred eleven".