1013031001303 has 4 divisors (see below), whose sum is σ = 1013052923080. Its totient is φ = 1013009079528.

The previous prime is 1013031001291. The next prime is 1013031001309. The reversal of 1013031001303 is 3031001303101.

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 1013031001303 - 2³⁷ = 875592047831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013031001309) 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, 10891425 + ... + 10984042.

It is an arithmetic number, because the mean of its divisors is an integer number (253263230770).

Almost surely, 2^{1013031001303} is an apocalyptic number.

1013031001303 is a deficient number, since it is larger than the sum of its proper divisors (21921777).

1013031001303 is an equidigital number, since it uses as much as digits as its factorization.

1013031001303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21921776.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 1013031001303 its reverse (3031001303101), we get a palindrome (4044032304404).

It can be divided in two parts, 101 and 3031001303, that multiplied together give a palindrome (306131131603).

The spelling of 1013031001303 in words is "one trillion, thirteen billion, thirty-one million, one thousand, three hundred three".