1310001221103 has 16 divisors (see below), whose sum is σ = 1850228730720. Its totient is φ = 821599220736.

The previous prime is 1310001221099. The next prime is 1310001221119. The reversal of 1310001221103 is 3011221000131.

It is a happy number.

It is not a de Polignac number, because 1310001221103 - 2² = 1310001221099 is a prime.

It is a super-2 number, since 2×1310001221103² (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 (1310001221153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544550 + ... + 5775987.

It is an arithmetic number, because the mean of its divisors is an integer number (115639295670).

Almost surely, 2^{1310001221103} is an apocalyptic number.

1310001221103 is a deficient number, since it is larger than the sum of its proper divisors (540227509617).

1310001221103 is a wasteful number, since it uses less digits than its factorization.

1310001221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322826.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1310001221103 its reverse (3011221000131), we get a palindrome (4321222221234).

The spelling of 1310001221103 in words is "one trillion, three hundred ten billion, one million, two hundred twenty-one thousand, one hundred three".