12131255323 has 16 divisors (see below), whose sum is σ = 13474281600. Its totient is φ = 10828702080.

The previous prime is 12131255303. The next prime is 12131255341. The reversal of 12131255323 is 32355213121.

It is a cyclic number.

It is not a de Polignac number, because 12131255323 - 2¹³ = 12131247131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12131255291 and 12131255300.

It is not an unprimeable number, because it can be changed into a prime (12131255303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562483 + ... + 583651.

It is an arithmetic number, because the mean of its divisors is an integer number (842142600).

Almost surely, 2^12131255323 is an apocalyptic number.

12131255323 is a deficient number, since it is larger than the sum of its proper divisors (1343026277).

12131255323 is a wasteful number, since it uses less digits than its factorization.

12131255323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22122.

The product of its digits is 5400, while the sum is 28.

Adding to 12131255323 its reverse (32355213121), we get a palindrome (44486468444).

The spelling of 12131255323 in words is "twelve billion, one hundred thirty-one million, two hundred fifty-five thousand, three hundred twenty-three".