1313030102221 has 4 divisors (see below), whose sum is σ = 1320619871772. Its totient is φ = 1305440332672.

The previous prime is 1313030102201. The next prime is 1313030102287. The reversal of 1313030102221 is 1222010303131.

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 1057514006025 + 255516096196 = 1028355^2 + 505486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313030102221 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 (1313030102201) 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, 3794884516 + ... + 3794884861.

It is an arithmetic number, because the mean of its divisors is an integer number (330154967943).

Almost surely, 2^{1313030102221} is an apocalyptic number.

It is an amenable number.

1313030102221 is a deficient number, since it is larger than the sum of its proper divisors (7589769551).

1313030102221 is an equidigital number, since it uses as much as digits as its factorization.

1313030102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589769550.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1313030102221 its reverse (1222010303131), we get a palindrome (2535040405352).

The spelling of 1313030102221 in words is "one trillion, three hundred thirteen billion, thirty million, one hundred two thousand, two hundred twenty-one".