111111133412 has 24 divisors (see below), whose sum is σ = 203559550656. Its totient is φ = 52966999008.

The previous prime is 111111133403. The next prime is 111111133417. The reversal of 111111133412 is 214331111111.

It is not an unprimeable number, because it can be changed into a prime (111111133417) 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, 1938743 + ... + 1995230.

It is an arithmetic number, because the mean of its divisors is an integer number (8481647944).

Almost surely, 2^111111133412 is an apocalyptic number.

It is an amenable number.

111111133412 is a deficient number, since it is larger than the sum of its proper divisors (92448417244).

111111133412 is a wasteful number, since it uses less digits than its factorization.

111111133412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934307 (or 3934305 counting only the distinct ones).

The product of its digits is 72, while the sum is 20.

Adding to 111111133412 its reverse (214331111111), we get a palindrome (325442244523).

The spelling of 111111133412 in words is "one hundred eleven billion, one hundred eleven million, one hundred thirty-three thousand, four hundred twelve".