1313001231003 has 72 divisors (see below), whose sum is σ = 2385452500704. Its totient is φ = 681219601920.

The previous prime is 1313001230963. The next prime is 1313001231011. The reversal of 1313001231003 is 3001321003131.

It is a happy number.

1313001231003 is a `hidden beast` number, since 131 + 300 + 1 + 231 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 1313001231003 - 2¹² = 1313001226907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313001231023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5967475 + ... + 6183587.

It is an arithmetic number, because the mean of its divisors is an integer number (33131284732).

Almost surely, 2^{1313001231003} is an apocalyptic number.

1313001231003 is a deficient number, since it is larger than the sum of its proper divisors (1072451269701).

1313001231003 is a wasteful number, since it uses less digits than its factorization.

1313001231003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216945 (or 216931 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1313001231003 its reverse (3001321003131), we get a palindrome (4314322234134).

It can be divided in two parts, 13130012 and 31003, that added together give a triangular number (13161015 = T₅₁₃₀).

The spelling of 1313001231003 in words is "one trillion, three hundred thirteen billion, one million, two hundred thirty-one thousand, three".