1313120231213 has 8 divisors (see below), whose sum is σ = 1501034900928. Its totient is φ = 1125287077824.

The previous prime is 1313120231209. The next prime is 1313120231237. The reversal of 1313120231213 is 3121320213131.

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

It is not a de Polignac number, because 1313120231213 - 2² = 1313120231209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313120231113) 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, 20344556 + ... + 20408997.

It is an arithmetic number, because the mean of its divisors is an integer number (187629362616).

Almost surely, 2^{1313120231213} is an apocalyptic number.

It is an amenable number.

1313120231213 is a deficient number, since it is larger than the sum of its proper divisors (187914669715).

1313120231213 is an equidigital number, since it uses as much as digits as its factorization.

1313120231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40758163.

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

Adding to 1313120231213 its reverse (3121320213131), we get a palindrome (4434440444344).

The spelling of 1313120231213 in words is "one trillion, three hundred thirteen billion, one hundred twenty million, two hundred thirty-one thousand, two hundred thirteen".