12013311112 has 32 divisors (see below), whose sum is σ = 24584964480. Its totient is φ = 5457866560.

The previous prime is 12013311097. The next prime is 12013311119. The reversal of 12013311112 is 21111331021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12013311119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148458 + ... + 214630.

It is an arithmetic number, because the mean of its divisors is an integer number (768280140).

Almost surely, 2^12013311112 is an apocalyptic number.

It is an amenable number.

12013311112 is an abundant number, since it is smaller than the sum of its proper divisors (12571653368).

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

12013311112 is a wasteful number, since it uses less digits than its factorization.

12013311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68253 (or 68249 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12013311112 its reverse (21111331021), we get a palindrome (33124642133).

The spelling of 12013311112 in words is "twelve billion, thirteen million, three hundred eleven thousand, one hundred twelve".