113231321123212 has 12 divisors (see below), whose sum is σ = 198155116468120. Its totient is φ = 56615573560896.

The previous prime is 113231321123189. The next prime is 113231321123213. The reversal of 113231321123212 is 212321123132311.

It is a super-2 number, since 2×113231321123212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113231321123213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18776637 + ... + 24062932.

Almost surely, 2^{113231321123212} is an apocalyptic number.

It is an amenable number.

113231321123212 is a deficient number, since it is larger than the sum of its proper divisors (84923795344908).

113231321123212 is a wasteful number, since it uses less digits than its factorization.

113231321123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43500360 (or 43500358 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 113231321123212 its reverse (212321123132311), we get a palindrome (325552444255523).

The spelling of 113231321123212 in words is "one hundred thirteen trillion, two hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred twelve".