2013231211212 has 96 divisors (see below), whose sum is σ = 5147657948160. Its totient is φ = 608645640960.

The previous prime is 2013231211181. The next prime is 2013231211237. The reversal of 2013231211212 is 2121121323102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2935089 + ... + 3555447.

It is an arithmetic number, because the mean of its divisors is an integer number (53621436960).

Almost surely, 2^{2013231211212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013231211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2573828974080).

2013231211212 is an abundant number, since it is smaller than the sum of its proper divisors (3134426736948).

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

2013231211212 is a wasteful number, since it uses less digits than its factorization.

2013231211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620743 (or 620741 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2013231211212 its reverse (2121121323102), we get a palindrome (4134352534314).

The spelling of 2013231211212 in words is "two trillion, thirteen billion, two hundred thirty-one million, two hundred eleven thousand, two hundred twelve".