123032040 has 32 divisors (see below), whose sum is σ = 369096480. Its totient is φ = 32808512.

The previous prime is 123032017. The next prime is 123032053. The reversal of 123032040 is 40230321.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 512514 + ... + 512753.

It is an arithmetic number, because the mean of its divisors is an integer number (11534265).

Almost surely, 2^123032040 is an apocalyptic number.

123032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123032040 is an abundant number, since it is smaller than the sum of its proper divisors (246064440).

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

123032040 is a wasteful number, since it uses less digits than its factorization.

123032040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025281 (or 1025277 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 123032040 is about 11091.9808871094. The cubic root of 123032040 is about 497.3621614214.

Adding to 123032040 its reverse (40230321), we get a palindrome (163262361).

The spelling of 123032040 in words is "one hundred twenty-three million, thirty-two thousand, forty".