1313110123203 has 16 divisors (see below), whose sum is σ = 1764733730816. Its totient is φ = 868447681920.

The previous prime is 1313110123189. The next prime is 1313110123207. The reversal of 1313110123203 is 3023210113131.

It is a happy number.

It is not a de Polignac number, because 1313110123203 - 2¹⁰ = 1313110122179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313110123203.

It is not an unprimeable number, because it can be changed into a prime (1313110123207) 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, 5161398 + ... + 5409828.

It is an arithmetic number, because the mean of its divisors is an integer number (110295858176).

Almost surely, 2^{1313110123203} is an apocalyptic number.

1313110123203 is a deficient number, since it is larger than the sum of its proper divisors (451623607613).

1313110123203 is a wasteful number, since it uses less digits than its factorization.

1313110123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262434.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1313110123203 its reverse (3023210113131), we get a palindrome (4336320236334).

The spelling of 1313110123203 in words is "one trillion, three hundred thirteen billion, one hundred ten million, one hundred twenty-three thousand, two hundred three".