1513321003213 has 4 divisors (see below), whose sum is σ = 1515765787360. Its totient is φ = 1510876219068.

The previous prime is 1513321003189. The next prime is 1513321003273. The reversal of 1513321003213 is 3123001233151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513321003213 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 (1513321003273) 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, 1222391145 + ... + 1222392382.

It is an arithmetic number, because the mean of its divisors is an integer number (378941446840).

Almost surely, 2^{1513321003213} is an apocalyptic number.

It is an amenable number.

1513321003213 is a deficient number, since it is larger than the sum of its proper divisors (2444784147).

1513321003213 is an equidigital number, since it uses as much as digits as its factorization.

1513321003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444784146.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 1513321003213 its reverse (3123001233151), we get a palindrome (4636322236364).

The spelling of 1513321003213 in words is "one trillion, five hundred thirteen billion, three hundred twenty-one million, three thousand, two hundred thirteen".