12130312131331 has 4 divisors (see below), whose sum is σ = 12131554110192. Its totient is φ = 12129070152472.

The previous prime is 12130312131283. The next prime is 12130312131349. The reversal of 12130312131331 is 13313121303121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12130312131331 - 2¹¹ = 12130312129283 is a prime.

It is a super-2 number, since 2×12130312131331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130312131296 and 12130312131305.

It is not an unprimeable number, because it can be changed into a prime (12130312134331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620974780 + ... + 620994313.

It is an arithmetic number, because the mean of its divisors is an integer number (3032888527548).

Almost surely, 2^{12130312131331} is an apocalyptic number.

12130312131331 is a deficient number, since it is larger than the sum of its proper divisors (1241978861).

12130312131331 is an equidigital number, since it uses as much as digits as its factorization.

12130312131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241978860.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 12130312131331 its reverse (13313121303121), we get a palindrome (25443433434452).

The spelling of 12130312131331 in words is "twelve trillion, one hundred thirty billion, three hundred twelve million, one hundred thirty-one thousand, three hundred thirty-one".