123104040 has 64 divisors (see below), whose sum is σ = 388756800. Its totient is φ = 31099392.

The previous prime is 123103993. The next prime is 123104053. The reversal of 123104040 is 40401321.

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 15 ways as a sum of consecutive naturals, for example, 24717 + ... + 29276.

It is an arithmetic number, because the mean of its divisors is an integer number (6074325).

Almost surely, 2^123104040 is an apocalyptic number.

123104040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123104040 is an abundant number, since it is smaller than the sum of its proper divisors (265652760).

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

123104040 is a wasteful number, since it uses less digits than its factorization.

123104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54026 (or 54022 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 123104040 is about 11095.2260004022. The cubic root of 123104040 is about 497.4591635041.

Adding to 123104040 its reverse (40401321), we get a palindrome (163505361).

The spelling of 123104040 in words is "one hundred twenty-three million, one hundred four thousand, forty".