12013411312 has 80 divisors (see below), whose sum is σ = 27830218752. Its totient is φ = 4916067840.

The previous prime is 12013411279. The next prime is 12013411351. The reversal of 12013411312 is 21311431021.

It is a super-2 number, since 2×12013411312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12013411312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187993 + ... + 243655.

Almost surely, 2^12013411312 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 12013411312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13915109376).

12013411312 is an abundant number, since it is smaller than the sum of its proper divisors (15816807440).

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

12013411312 is a wasteful number, since it uses less digits than its factorization.

12013411312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55766 (or 55760 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12013411312 its reverse (21311431021), we get a palindrome (33324842333).

The spelling of 12013411312 in words is "twelve billion, thirteen million, four hundred eleven thousand, three hundred twelve".