233121442 has 16 divisors (see below), whose sum is σ = 370536120. Its totient is φ = 109619968.

The previous prime is 233121439. The next prime is 233121467. The reversal of 233121442 is 244121332.

233121442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 222875041 + 10246401 = 14929^2 + 3201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78684 + ... + 81592.

Almost surely, 2^233121442 is an apocalyptic number.

233121442 is a deficient number, since it is larger than the sum of its proper divisors (137414678).

233121442 is a wasteful number, since it uses less digits than its factorization.

233121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285.

The product of its digits is 1152, while the sum is 22.

The square root of 233121442 is about 15268.3149692427. The cubic root of 233121442 is about 615.4518388399.

Adding to 233121442 its reverse (244121332), we get a palindrome (477242774).

The spelling of 233121442 in words is "two hundred thirty-three million, one hundred twenty-one thousand, four hundred forty-two".