1312320100103 has 4 divisors (see below), whose sum is σ = 1312512275640. Its totient is φ = 1312127924568.

The previous prime is 1312320100067. The next prime is 1312320100127. The reversal of 1312320100103 is 3010010232131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312320100103 - 2¹² = 1312320096007 is a prime.

It is a super-2 number, since 2×1312320100103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312320100703) 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, 96077525 + ... + 96091182.

It is an arithmetic number, because the mean of its divisors is an integer number (328128068910).

Almost surely, 2^{1312320100103} is an apocalyptic number.

1312320100103 is a deficient number, since it is larger than the sum of its proper divisors (192175537).

1312320100103 is an equidigital number, since it uses as much as digits as its factorization.

1312320100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192175536.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1312320100103 its reverse (3010010232131), we get a palindrome (4322330332234).

The spelling of 1312320100103 in words is "one trillion, three hundred twelve billion, three hundred twenty million, one hundred thousand, one hundred three".