123255430 has 16 divisors (see below), whose sum is σ = 227271744. Its totient is φ = 48099520.

The previous prime is 123255427. The next prime is 123255443. The reversal of 123255430 is 34552321.

It is a junction number, because it is equal to n+sod(n) for n = 123255395 and 123255404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149902 + ... + 150721.

It is an arithmetic number, because the mean of its divisors is an integer number (14204484).

Almost surely, 2^123255430 is an apocalyptic number.

123255430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123255430 is a deficient number, since it is larger than the sum of its proper divisors (104016314).

123255430 is a wasteful number, since it uses less digits than its factorization.

123255430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300671.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 123255430 is about 11102.0462077943. The cubic root of 123255430 is about 497.6630005521.

The spelling of 123255430 in words is "one hundred twenty-three million, two hundred fifty-five thousand, four hundred thirty".