11142311512 has 32 divisors (see below), whose sum is σ = 22105407600. Its totient is φ = 5250576384.

The previous prime is 11142311507. The next prime is 11142311539. The reversal of 11142311512 is 21511324111.

It is a super-2 number, since 2×11142311512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160573 + ... + 219244.

Almost surely, 2^11142311512 is an apocalyptic number.

It is an amenable number.

11142311512 is a deficient number, since it is larger than the sum of its proper divisors (10963096088).

11142311512 is a wasteful number, since it uses less digits than its factorization.

11142311512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380035 (or 380031 counting only the distinct ones).

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

Adding to 11142311512 its reverse (21511324111), we get a palindrome (32653635623).

The spelling of 11142311512 in words is "eleven billion, one hundred forty-two million, three hundred eleven thousand, five hundred twelve".