1313220121103 has 8 divisors (see below), whose sum is σ = 1432839738576. Its totient is φ = 1193639832000.

The previous prime is 1313220120983. The next prime is 1313220121181. The reversal of 1313220121103 is 3011210223131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313220121103 - 2¹² = 1313220117007 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 (1313210121103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9762248 + ... + 9895853.

It is an arithmetic number, because the mean of its divisors is an integer number (179104967322).

Almost surely, 2^{1313220121103} is an apocalyptic number.

1313220121103 is a deficient number, since it is larger than the sum of its proper divisors (119619617473).

1313220121103 is a wasteful number, since it uses less digits than its factorization.

1313220121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19664185.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1313220121103 its reverse (3011210223131), we get a palindrome (4324430344234).

The spelling of 1313220121103 in words is "one trillion, three hundred thirteen billion, two hundred twenty million, one hundred twenty-one thousand, one hundred three".