123203472 has 40 divisors (see below), whose sum is σ = 363744576. Its totient is φ = 35200896.

The previous prime is 123203449. The next prime is 123203477. The reversal of 123203472 is 274302321.

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

It is not an unprimeable number, because it can be changed into a prime (123203477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183003 + ... + 183674.

Almost surely, 2^123203472 is an apocalyptic number.

123203472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123203472 is an abundant number, since it is smaller than the sum of its proper divisors (240541104).

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

123203472 is a wasteful number, since it uses less digits than its factorization.

123203472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366695 (or 366689 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 123203472 is about 11099.7059420509. The cubic root of 123203472 is about 497.5930612171.

Adding to 123203472 its reverse (274302321), we get a palindrome (397505793).

The spelling of 123203472 in words is "one hundred twenty-three million, two hundred three thousand, four hundred seventy-two".