12031321313 has 8 divisors (see below), whose sum is σ = 13126635360. Its totient is φ = 10936266880.

The previous prime is 12031321307. The next prime is 12031321319. The reversal of 12031321313 is 31312313021.

It is an interprime number because it is at equal distance from previous prime (12031321307) and next prime (12031321319).

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

It is not a de Polignac number, because 12031321313 - 2⁴ = 12031321297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031321319) 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, 39281 + ... + 160017.

It is an arithmetic number, because the mean of its divisors is an integer number (1640829420).

Almost surely, 2^12031321313 is an apocalyptic number.

It is an amenable number.

12031321313 is a deficient number, since it is larger than the sum of its proper divisors (1095314047).

12031321313 is a wasteful number, since it uses less digits than its factorization.

12031321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129807.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12031321313 its reverse (31312313021), we get a palindrome (43343634334).

The spelling of 12031321313 in words is "twelve billion, thirty-one million, three hundred twenty-one thousand, three hundred thirteen".