12131102231 has 8 divisors (see below), whose sum is σ = 12242108880. Its totient is φ = 12020159872.

The previous prime is 12131102227. The next prime is 12131102239. The reversal of 12131102231 is 13220113121.

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 12131102231 - 2² = 12131102227 is a prime.

It is a super-3 number, since 3×12131102231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131102239) 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, 415625 + ... + 443853.

It is an arithmetic number, because the mean of its divisors is an integer number (1530263610).

Almost surely, 2^12131102231 is an apocalyptic number.

12131102231 is a deficient number, since it is larger than the sum of its proper divisors (111006649).

12131102231 is a wasteful number, since it uses less digits than its factorization.

12131102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32145.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12131102231 its reverse (13220113121), we get a palindrome (25351215352).

The spelling of 12131102231 in words is "twelve billion, one hundred thirty-one million, one hundred two thousand, two hundred thirty-one".