121323432 has 16 divisors (see below), whose sum is σ = 303308640. Its totient is φ = 40441136.

The previous prime is 121323409. The next prime is 121323473. The reversal of 121323432 is 234323121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121323399 and 121323408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2527548 + ... + 2527595.

It is an arithmetic number, because the mean of its divisors is an integer number (18956790).

Almost surely, 2^121323432 is an apocalyptic number.

121323432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121323432 is an abundant number, since it is smaller than the sum of its proper divisors (181985208).

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

121323432 is a wasteful number, since it uses less digits than its factorization.

121323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055152 (or 5055148 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 121323432 is about 11014.6916434370. The cubic root of 121323432 is about 495.0490472775.

Adding to 121323432 its reverse (234323121), we get a palindrome (355646553).

The spelling of 121323432 in words is "one hundred twenty-one million, three hundred twenty-three thousand, four hundred thirty-two".