123140232 has 48 divisors (see below), whose sum is σ = 334788480. Its totient is φ = 40888800.

The previous prime is 123140221. The next prime is 123140279. The reversal of 123140232 is 232041321.

123140232 is a `hidden beast` number, since 1 + 231 + 402 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16357 + ... + 22667.

It is an arithmetic number, because the mean of its divisors is an integer number (6974760).

Almost surely, 2^123140232 is an apocalyptic number.

123140232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123140232 is an abundant number, since it is smaller than the sum of its proper divisors (211648248).

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

123140232 is a wasteful number, since it uses less digits than its factorization.

123140232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594 (or 6587 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123140232 is about 11096.8568522803. The cubic root of 123140232 is about 497.5079089338.

Adding to 123140232 its reverse (232041321), we get a palindrome (355181553).

The spelling of 123140232 in words is "one hundred twenty-three million, one hundred forty thousand, two hundred thirty-two".