1031320322113 has 8 divisors (see below), whose sum is σ = 1033803801576. Its totient is φ = 1028839728000.

The previous prime is 1031320322099. The next prime is 1031320322129. The reversal of 1031320322113 is 3112230231301.

It can be written as a sum of positive squares in 4 ways, for example, as 527116656784 + 504203665329 = 726028^2 + 710073^2 .

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 1031320322113 - 2²¹ = 1031318224961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1032320322113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4756 + ... + 1436197.

It is an arithmetic number, because the mean of its divisors is an integer number (129225475197).

Almost surely, 2^{1031320322113} is an apocalyptic number.

It is an amenable number.

1031320322113 is a deficient number, since it is larger than the sum of its proper divisors (2483479463).

1031320322113 is a wasteful number, since it uses less digits than its factorization.

1031320322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442675.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031320322113 its reverse (3112230231301), we get a palindrome (4143550553414).

The spelling of 1031320322113 in words is "one trillion, thirty-one billion, three hundred twenty million, three hundred twenty-two thousand, one hundred thirteen".