123230055 has 32 divisors (see below), whose sum is σ = 215953920. Its totient is φ = 59633280.

The previous prime is 123230047. The next prime is 123230057. The reversal of 123230055 is 550032321.

It is not a de Polignac number, because 123230055 - 2³ = 123230047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123230057) 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, 6150 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (6748560).

Almost surely, 2^123230055 is an apocalyptic number.

123230055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123230055 is a deficient number, since it is larger than the sum of its proper divisors (92723865).

123230055 is a wasteful number, since it uses less digits than its factorization.

123230055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10791.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 123230055 is about 11100.9033416204. The cubic root of 123230055 is about 497.6288463696.

Adding to 123230055 its reverse (550032321), we get a palindrome (673262376).

The spelling of 123230055 in words is "one hundred twenty-three million, two hundred thirty thousand, fifty-five".