1001343031013 has 4 divisors (see below), whose sum is σ = 1078369418028. Its totient is φ = 924316644000.

The previous prime is 1001343031009. The next prime is 1001343031021. The reversal of 1001343031013 is 3101303431001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65311935844 + 936031095169 = 255562^2 + 967487^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001343031013 - 2² = 1001343031009 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 (1001343031043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38513193488 + ... + 38513193513.

It is an arithmetic number, because the mean of its divisors is an integer number (269592354507).

Almost surely, 2^{1001343031013} is an apocalyptic number.

1001343031013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1001343031013 is a deficient number, since it is larger than the sum of its proper divisors (77026387015).

1001343031013 is an equidigital number, since it uses as much as digits as its factorization.

1001343031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77026387014.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1001343031013 its reverse (3101303431001), we get a palindrome (4102646462014).

The spelling of 1001343031013 in words is "one trillion, one billion, three hundred forty-three million, thirty-one thousand, thirteen".