12132431111 has 8 divisors (see below), whose sum is σ = 12242674320. Its totient is φ = 12022238592.

The previous prime is 12132431107. The next prime is 12132431117. The reversal of 12132431111 is 11113423121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12132431111 - 2² = 12132431107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132431117) 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, 602441 + ... + 622253.

It is an arithmetic number, because the mean of its divisors is an integer number (1530334290).

Almost surely, 2^12132431111 is an apocalyptic number.

12132431111 is a deficient number, since it is larger than the sum of its proper divisors (110243209).

12132431111 is a wasteful number, since it uses less digits than its factorization.

12132431111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25345.

The product of its digits is 144, while the sum is 20.

Adding to 12132431111 its reverse (11113423121), we get a palindrome (23245854232).

The spelling of 12132431111 in words is "twelve billion, one hundred thirty-two million, four hundred thirty-one thousand, one hundred eleven".