1313222223013 has 4 divisors (see below), whose sum is σ = 1313224516780. Its totient is φ = 1313219929248.

The previous prime is 1313222222989. The next prime is 1313222223023. The reversal of 1313222223013 is 3103222223131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 648374417089 + 664847805924 = 805217^2 + 815382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313222223013 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 (1313222223023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504403 + ... + 1697311.

It is an arithmetic number, because the mean of its divisors is an integer number (328306129195).

Almost surely, 2^{1313222223013} is an apocalyptic number.

It is an amenable number.

1313222223013 is a deficient number, since it is larger than the sum of its proper divisors (2293767).

1313222223013 is a wasteful number, since it uses less digits than its factorization.

1313222223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293766.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1313222223013 its reverse (3103222223131), we get a palindrome (4416444446144).

The spelling of 1313222223013 in words is "one trillion, three hundred thirteen billion, two hundred twenty-two million, two hundred twenty-three thousand, thirteen".