1310121311103 has 24 divisors (see below), whose sum is σ = 2065195506816. Its totient is φ = 793719867600.

The previous prime is 1310121311101. The next prime is 1310121311171. The reversal of 1310121311103 is 3011131210131.

1310121311103 is a `hidden beast` number, since 131 + 0 + 121 + 311 + 103 = 666.

It is not a de Polignac number, because 1310121311103 - 2¹ = 1310121311101 is a prime.

It is a super-2 number, since 2×1310121311103² (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 (1310121311101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2172325 + ... + 2709102.

It is an arithmetic number, because the mean of its divisors is an integer number (86049812784).

Almost surely, 2^{1310121311103} is an apocalyptic number.

1310121311103 is a deficient number, since it is larger than the sum of its proper divisors (755074195713).

1310121311103 is a wasteful number, since it uses less digits than its factorization.

1310121311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884155 (or 4884152 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1310121311103 its reverse (3011131210131), we get a palindrome (4321252521234).

The spelling of 1310121311103 in words is "one trillion, three hundred ten billion, one hundred twenty-one million, three hundred eleven thousand, one hundred three".