123133430055 has 32 divisors (see below), whose sum is σ = 207625017600. Its totient is φ = 62142066432.

The previous prime is 123133430041. The next prime is 123133430059. The reversal of 123133430055 is 550034331321.

It is not a de Polignac number, because 123133430055 - 2⁵ = 123133430023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133430059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7825 + ... + 496314.

It is an arithmetic number, because the mean of its divisors is an integer number (6488281800).

Almost surely, 2^123133430055 is an apocalyptic number.

123133430055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123133430055 is a deficient number, since it is larger than the sum of its proper divisors (84491587545).

123133430055 is a wasteful number, since it uses less digits than its factorization.

123133430055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505023.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 123133430055 its reverse (550034331321), we get a palindrome (673167761376).

The spelling of 123133430055 in words is "one hundred twenty-three billion, one hundred thirty-three million, four hundred thirty thousand, fifty-five".