23312121212 has 24 divisors (see below), whose sum is σ = 42949860240. Its totient is φ = 11040917760.

The previous prime is 23312121191. The next prime is 23312121229. The reversal of 23312121212 is 21212121332.

23312121212 is a modest number, since divided by 121212 gives 23312 as remainder.

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, 590162 + ... + 628422.

It is an arithmetic number, because the mean of its divisors is an integer number (1789577510).

Almost surely, 2^23312121212 is an apocalyptic number.

It is an amenable number.

23312121212 is a deficient number, since it is larger than the sum of its proper divisors (19637739028).

23312121212 is a wasteful number, since it uses less digits than its factorization.

23312121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46301 (or 46299 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 23312121212 its reverse (21212121332), we get a palindrome (44524242544).

The spelling of 23312121212 in words is "twenty-three billion, three hundred twelve million, one hundred twenty-one thousand, two hundred twelve".