123813554955 has 16 divisors (see below), whose sum is σ = 198110962944. Its totient is φ = 66030804320.

The previous prime is 123813554903. The next prime is 123813554993. The reversal of 123813554955 is 559455318321.

It is not a de Polignac number, because 123813554955 - 2¹⁵ = 123813522187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123813554898 and 123813554907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158482 + ... + 522248.

It is an arithmetic number, because the mean of its divisors is an integer number (12381935184).

Almost surely, 2^123813554955 is an apocalyptic number.

123813554955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123813554955 is a deficient number, since it is larger than the sum of its proper divisors (74297407989).

123813554955 is a wasteful number, since it uses less digits than its factorization.

123813554955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386466.

The product of its digits is 3240000, while the sum is 51.

The spelling of 123813554955 in words is "one hundred twenty-three billion, eight hundred thirteen million, five hundred fifty-four thousand, nine hundred fifty-five".