23011131212 has 12 divisors (see below), whose sum is σ = 40406920176. Its totient is φ = 11466296880.

The previous prime is 23011131193. The next prime is 23011131217. The reversal of 23011131212 is 21213111032.

It is not an unprimeable number, because it can be changed into a prime (23011131217) 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, 9815864 + ... + 9818207.

It is an arithmetic number, because the mean of its divisors is an integer number (3367243348).

Almost surely, 2^23011131212 is an apocalyptic number.

It is an amenable number.

23011131212 is a deficient number, since it is larger than the sum of its proper divisors (17395788964).

23011131212 is a wasteful number, since it uses less digits than its factorization.

23011131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19634368 (or 19634366 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23011131212 its reverse (21213111032), we get a palindrome (44224242244).

The spelling of 23011131212 in words is "twenty-three billion, eleven million, one hundred thirty-one thousand, two hundred twelve".