121112432 has 20 divisors (see below), whose sum is σ = 268177776. Its totient is φ = 51905280.

The previous prime is 121112399. The next prime is 121112449. The reversal of 121112432 is 234211121.

It is a self number, because there is not a number n which added to its sum of digits gives 121112432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540569 + ... + 540792.

Almost surely, 2^121112432 is an apocalyptic number.

It is an amenable number.

121112432 is an abundant number, since it is smaller than the sum of its proper divisors (147065344).

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

121112432 is a wasteful number, since it uses less digits than its factorization.

121112432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081376 (or 1081370 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 121112432 is about 11005.1093588387. The cubic root of 121112432 is about 494.7618920802.

Adding to 121112432 its reverse (234211121), we get a palindrome (355323553).

The spelling of 121112432 in words is "one hundred twenty-one million, one hundred twelve thousand, four hundred thirty-two".