123265320 has 32 divisors (see below), whose sum is σ = 369796320. Its totient is φ = 32870720.

The previous prime is 123265309. The next prime is 123265343. The reversal of 123265320 is 23562321.

It is a super-2 number, since 2×123265320² = 30388678229404800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 513486 + ... + 513725.

It is an arithmetic number, because the mean of its divisors is an integer number (11556135).

Almost surely, 2^123265320 is an apocalyptic number.

123265320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123265320 is an abundant number, since it is smaller than the sum of its proper divisors (246531000).

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

123265320 is a wasteful number, since it uses less digits than its factorization.

123265320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027225 (or 1027221 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 123265320 is about 11102.4916122463. The cubic root of 123265320 is about 497.6763110013.

The spelling of 123265320 in words is "one hundred twenty-three million, two hundred sixty-five thousand, three hundred twenty".