233121412 has 24 divisors (see below), whose sum is σ = 435327200. Its totient is φ = 108910656.

The previous prime is 233121409. The next prime is 233121439. The reversal of 233121412 is 214121332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 233121412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15462 + ... + 26557.

Almost surely, 2^233121412 is an apocalyptic number.

It is an amenable number.

233121412 is a deficient number, since it is larger than the sum of its proper divisors (202205788).

233121412 is a wasteful number, since it uses less digits than its factorization.

233121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42115 (or 42113 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 233121412 is about 15268.3139868160. The cubic root of 233121412 is about 615.4518124394.

Adding to 233121412 its reverse (214121332), we get a palindrome (447242744).

The spelling of 233121412 in words is "two hundred thirty-three million, one hundred twenty-one thousand, four hundred twelve".