231133102121212 has 24 divisors (see below), whose sum is σ = 404967875862704. Its totient is φ = 115428010182912.

The previous prime is 231133102121143. The next prime is 231133102121249. The reversal of 231133102121212 is 212121201331132.

It is a congruent number.

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, 58194223 + ... + 62038969.

Almost surely, 2^{231133102121212} is an apocalyptic number.

It is an amenable number.

231133102121212 is a deficient number, since it is larger than the sum of its proper divisors (173834773741492).

231133102121212 is a wasteful number, since it uses less digits than its factorization.

231133102121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862765 (or 3862763 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 231133102121212 its reverse (212121201331132), we get a palindrome (443254303452344).

The spelling of 231133102121212 in words is "two hundred thirty-one trillion, one hundred thirty-three billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".