233121111112 has 16 divisors (see below), whose sum is σ = 462813970860. Its totient is φ = 109704052224.

The previous prime is 233121111089. The next prime is 233121111121. The reversal of 233121111112 is 211111121332.

It can be written as a sum of positive squares in 2 ways, for example, as 233120946276 + 164836 = 482826^2 + 406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233121111112.

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, 857062773 + ... + 857063044.

Almost surely, 2^233121111112 is an apocalyptic number.

It is an amenable number.

233121111112 is a deficient number, since it is larger than the sum of its proper divisors (229692859748).

233121111112 is a wasteful number, since it uses less digits than its factorization.

233121111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714125840 (or 1714125836 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 233121111112 its reverse (211111121332), we get a palindrome (444232232444).

The spelling of 233121111112 in words is "two hundred thirty-three billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twelve".