1313221244103 has 36 divisors (see below), whose sum is σ = 1929501854280. Its totient is φ = 860665627008.

The previous prime is 1313221244059. The next prime is 1313221244141. The reversal of 1313221244103 is 3014421223131.

1313221244103 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 2 + 212 + 441 + 0 + 3 = 666.

It is not a de Polignac number, because 1313221244103 - 2¹⁰ = 1313221243079 is a prime.

It is a super-2 number, since 2×1313221244103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313221204103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14679433 + ... + 14768621.

It is an arithmetic number, because the mean of its divisors is an integer number (53597273730).

Almost surely, 2^{1313221244103} is an apocalyptic number.

1313221244103 is a deficient number, since it is larger than the sum of its proper divisors (616280610177).

1313221244103 is an equidigital number, since it uses as much as digits as its factorization.

1313221244103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89648 (or 89572 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1313221244103 its reverse (3014421223131), we get a palindrome (4327642467234).

The spelling of 1313221244103 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, two hundred forty-four thousand, one hundred three".