232121232 has 180 divisors, whose sum is σ = 768517776. Its totient is φ = 65197440.

The previous prime is 232121231. The next prime is 232121237.

232121232 is nontrivially palindromic in base 10.

232121232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (232121231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 472507 + ... + 472997.

Almost surely, 2^232121232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384258888).

232121232 is an abundant number, since it is smaller than the sum of its proper divisors (536396544).

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

232121232 is a wasteful number, since it uses less digits than its factorization.

232121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 570 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232121232 is about 15235.5253273394. The cubic root of 232121232 is about 614.5703761300.

The spelling of 232121232 in words is "two hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty-two".