2312313121212 has 24 divisors (see below), whose sum is σ = 5395467880656. Its totient is φ = 770760955008.

The previous prime is 2312313121199. The next prime is 2312313121309. The reversal of 2312313121212 is 2121213132132.

It is a nude number because it is divisible by every one of its digits.

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, 274513 + ... + 2167944.

It is an arithmetic number, because the mean of its divisors is an integer number (224811161694).

Almost surely, 2^{2312313121212} is an apocalyptic number.

It is an amenable number.

2312313121212 is an abundant number, since it is smaller than the sum of its proper divisors (3083154759444).

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

2312313121212 is a wasteful number, since it uses less digits than its factorization.

2312313121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521357 (or 2521355 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 2312313121212 its reverse (2121213132132), we get a palindrome (4433526253344).

The spelling of 2312313121212 in words is "two trillion, three hundred twelve billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred twelve".