12013031313133 has 4 divisors (see below), whose sum is σ = 12018270317308. Its totient is φ = 12007792308960.

The previous prime is 12013031313131. The next prime is 12013031313139. The reversal of 12013031313133 is 33131313031021.

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 976138072009 + 11036893241124 = 987997^2 + 3322182^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013031313133 - 2¹ = 12013031313131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12013031313098 and 12013031313107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013031313131) 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, 2619498648 + ... + 2619503233.

It is an arithmetic number, because the mean of its divisors is an integer number (3004567579327).

Almost surely, 2^{12013031313133} is an apocalyptic number.

It is an amenable number.

12013031313133 is a deficient number, since it is larger than the sum of its proper divisors (5239004175).

12013031313133 is an equidigital number, since it uses as much as digits as its factorization.

12013031313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239004174.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 12013031313133 its reverse (33131313031021), we get a palindrome (45144344344154).

The spelling of 12013031313133 in words is "twelve trillion, thirteen billion, thirty-one million, three hundred thirteen thousand, one hundred thirty-three".