12111142432 has 24 divisors (see below), whose sum is σ = 23903896716. Its totient is φ = 6040311552.

The previous prime is 12111142411. The next prime is 12111142447. The reversal of 12111142432 is 23424111121.

It can be written as a sum of positive squares in 2 ways, for example, as 11000653456 + 1110488976 = 104884^2 + 33324^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463963 + ... + 489370.

Almost surely, 2^12111142432 is an apocalyptic number.

It is an amenable number.

12111142432 is a deficient number, since it is larger than the sum of its proper divisors (11792754284).

12111142432 is an equidigital number, since it uses as much as digits as its factorization.

12111142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953740 (or 953732 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

Adding to 12111142432 its reverse (23424111121), we get a palindrome (35535253553).

The spelling of 12111142432 in words is "twelve billion, one hundred eleven million, one hundred forty-two thousand, four hundred thirty-two".