1313311021203 has 8 divisors (see below), whose sum is σ = 1760249327616. Its totient is φ = 870956697800.

The previous prime is 1313311021159. The next prime is 1313311021249. The reversal of 1313311021203 is 3021201133131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1313311021203 - 2³³ = 1304721086611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313311021203.

It is not an unprimeable number, because it can be changed into a prime (1313311021103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145995083 + ... + 1145996228.

It is an arithmetic number, because the mean of its divisors is an integer number (220031165952).

Almost surely, 2^{1313311021203} is an apocalyptic number.

1313311021203 is a deficient number, since it is larger than the sum of its proper divisors (446938306413).

1313311021203 is a wasteful number, since it uses less digits than its factorization.

1313311021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291991505.

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

Adding to 1313311021203 its reverse (3021201133131), we get a palindrome (4334512154334).

The spelling of 1313311021203 in words is "one trillion, three hundred thirteen billion, three hundred eleven million, twenty-one thousand, two hundred three".