12013012231313 has 4 divisors (see below), whose sum is σ = 12016279303860. Its totient is φ = 12009745158768.

The previous prime is 12013012231303. The next prime is 12013012231327. The reversal of 12013012231313 is 31313221031021.

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 9831341437009 + 2181670794304 = 3135497^2 + 1477048^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013012231313 - 2³⁸ = 11738134324369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013012231303) 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, 1633530758 + ... + 1633538111.

It is an arithmetic number, because the mean of its divisors is an integer number (3004069825965).

Almost surely, 2^{12013012231313} is an apocalyptic number.

It is an amenable number.

12013012231313 is a deficient number, since it is larger than the sum of its proper divisors (3267072547).

12013012231313 is an equidigital number, since it uses as much as digits as its factorization.

12013012231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267072546.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12013012231313 its reverse (31313221031021), we get a palindrome (43326233262334).

The spelling of 12013012231313 in words is "twelve trillion, thirteen billion, twelve million, two hundred thirty-one thousand, three hundred thirteen".