23313131212 has 18 divisors (see below), whose sum is σ = 47458874652. Its totient is φ = 9991341864.

The previous prime is 23313131209. The next prime is 23313131227. The reversal of 23313131212 is 21213131332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59472078 + ... + 59472469.

Almost surely, 2^23313131212 is an apocalyptic number.

It is an amenable number.

23313131212 is an abundant number, since it is smaller than the sum of its proper divisors (24145743440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23313131212 is a wasteful number, since it uses less digits than its factorization.

23313131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118944565 (or 118944556 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 23313131212 its reverse (21213131332), we get a palindrome (44526262544).

The spelling of 23313131212 in words is "twenty-three billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred twelve".