11151231412 has 24 divisors (see below), whose sum is σ = 19946424960. Its totient is φ = 5453572800.

The previous prime is 11151231407. The next prime is 11151231419. The reversal of 11151231412 is 21413215111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151231419) 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, 131089 + ... + 198712.

It is an arithmetic number, because the mean of its divisors is an integer number (831101040).

Almost surely, 2^11151231412 is an apocalyptic number.

It is an amenable number.

11151231412 is a deficient number, since it is larger than the sum of its proper divisors (8795193548).

11151231412 is a wasteful number, since it uses less digits than its factorization.

11151231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329991 (or 329989 counting only the distinct ones).

The product of its digits is 240, while the sum is 22.

Adding to 11151231412 its reverse (21413215111), we get a palindrome (32564446523).

The spelling of 11151231412 in words is "eleven billion, one hundred fifty-one million, two hundred thirty-one thousand, four hundred twelve".