1313203320101 has 4 divisors (see below), whose sum is σ = 1318085117100. Its totient is φ = 1308321523104.

The previous prime is 1313203320073. The next prime is 1313203320211. The reversal of 1313203320101 is 1010233023131.

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 432965316001 + 880238004100 = 658001^2 + 938210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313203320101 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 (1313203320701) 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, 2440898096 + ... + 2440898633.

It is an arithmetic number, because the mean of its divisors is an integer number (329521279275).

Almost surely, 2^{1313203320101} is an apocalyptic number.

It is an amenable number.

1313203320101 is a deficient number, since it is larger than the sum of its proper divisors (4881796999).

1313203320101 is an equidigital number, since it uses as much as digits as its factorization.

1313203320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881796998.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1313203320101 its reverse (1010233023131), we get a palindrome (2323436343232).

The spelling of 1313203320101 in words is "one trillion, three hundred thirteen billion, two hundred three million, three hundred twenty thousand, one hundred one".