231433212112 has 40 divisors (see below), whose sum is σ = 462222308736. Its totient is φ = 112196057856.

The previous prime is 231433212107. The next prime is 231433212121. The reversal of 231433212112 is 211212334132.

231433212112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231433212112² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357653 + ... + 1518580.

Almost surely, 2^231433212112 is an apocalyptic number.

It is an amenable number.

231433212112 is a deficient number, since it is larger than the sum of its proper divisors (230789096624).

231433212112 is a wasteful number, since it uses less digits than its factorization.

231433212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876395 (or 2876389 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 231433212112 its reverse (211212334132), we get a palindrome (442645546244).

The spelling of 231433212112 in words is "two hundred thirty-one billion, four hundred thirty-three million, two hundred twelve thousand, one hundred twelve".