123153430 has 16 divisors (see below), whose sum is σ = 229320720. Its totient is φ = 47562592.

The previous prime is 123153379. The next prime is 123153451. The reversal of 123153430 is 34351321.

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, 212044 + ... + 212623.

It is an arithmetic number, because the mean of its divisors is an integer number (14332545).

Almost surely, 2^123153430 is an apocalyptic number.

123153430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123153430 is a deficient number, since it is larger than the sum of its proper divisors (106167290).

123153430 is a wasteful number, since it uses less digits than its factorization.

123153430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424703.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 123153430 is about 11097.4515092430. The cubic root of 123153430 is about 497.5256823690.

The spelling of 123153430 in words is "one hundred twenty-three million, one hundred fifty-three thousand, four hundred thirty".