12031102313 has 4 divisors (see below), whose sum is σ = 12445967940. Its totient is φ = 11616236688.

The previous prime is 12031102277. The next prime is 12031102331. The reversal of 12031102313 is 31320113021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3975680809 + 8055421504 = 63053^2 + 89752^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031102313 - 2¹² = 12031098217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031102291 and 12031102300.

It is not an unprimeable number, because it can be changed into a prime (12031102813) 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, 207432770 + ... + 207432827.

It is an arithmetic number, because the mean of its divisors is an integer number (3111491985).

Almost surely, 2^12031102313 is an apocalyptic number.

It is an amenable number.

12031102313 is a deficient number, since it is larger than the sum of its proper divisors (414865627).

12031102313 is an equidigital number, since it uses as much as digits as its factorization.

12031102313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414865626.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12031102313 its reverse (31320113021), we get a palindrome (43351215334).

The spelling of 12031102313 in words is "twelve billion, thirty-one million, one hundred two thousand, three hundred thirteen".