123550320 has 40 divisors (see below), whose sum is σ = 383006736. Its totient is φ = 32946688.

The previous prime is 123550313. The next prime is 123550351. The reversal of 123550320 is 23055321.

It is a tau number, because it is divible by the number of its divisors (40).

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, 257157 + ... + 257636.

Almost surely, 2^123550320 is an apocalyptic number.

123550320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123550320 is an abundant number, since it is smaller than the sum of its proper divisors (259456416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123550320 is a wasteful number, since it uses less digits than its factorization.

123550320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514809 (or 514803 counting only the distinct ones).

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

The square root of 123550320 is about 11115.3191587106. The cubic root of 123550320 is about 498.0595725576.

The spelling of 123550320 in words is "one hundred twenty-three million, five hundred fifty thousand, three hundred twenty".