123381832 has 32 divisors (see below), whose sum is σ = 264769920. Its totient is φ = 52801920.

The previous prime is 123381809. The next prime is 123381851. The reversal of 123381832 is 238183321.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 123381794 and 123381803.

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, 56668 + ... + 58804.

It is an arithmetic number, because the mean of its divisors is an integer number (8274060).

Almost surely, 2^123381832 is an apocalyptic number.

It is an amenable number.

123381832 is an abundant number, since it is smaller than the sum of its proper divisors (141388088).

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

123381832 is a wasteful number, since it uses less digits than its factorization.

123381832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181 (or 3177 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 123381832 is about 11107.7374833942. The cubic root of 123381832 is about 497.8330650190.

The spelling of 123381832 in words is "one hundred twenty-three million, three hundred eighty-one thousand, eight hundred thirty-two".