11431244012 has 24 divisors (see below), whose sum is σ = 21175770000. Its totient is φ = 5390191296.

The previous prime is 11431244009. The next prime is 11431244063. The reversal of 11431244012 is 21044213411.

It is a super-2 number, since 2×11431244012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140887 + ... + 1150862.

It is an arithmetic number, because the mean of its divisors is an integer number (882323750).

Almost surely, 2^11431244012 is an apocalyptic number.

It is an amenable number.

11431244012 is a deficient number, since it is larger than the sum of its proper divisors (9744525988).

11431244012 is a wasteful number, since it uses less digits than its factorization.

11431244012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291825 (or 2291823 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11431244012 its reverse (21044213411), we get a palindrome (32475457423).

The spelling of 11431244012 in words is "eleven billion, four hundred thirty-one million, two hundred forty-four thousand, twelve".