10311221032313 has 4 divisors (see below), whose sum is σ = 10311256574820. Its totient is φ = 10311185489808.

The previous prime is 10311221032303. The next prime is 10311221032319. The reversal of 10311221032313 is 31323012211301.

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 3812127386089 + 6499093646224 = 1952467^2 + 2549332^2 .

It is a cyclic number.

It is not a de Polignac number, because 10311221032313 - 2³⁰ = 10310147290489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10311221032319) 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, 17332478 + ... + 17917511.

It is an arithmetic number, because the mean of its divisors is an integer number (2577814143705).

Almost surely, 2^{10311221032313} is an apocalyptic number.

It is an amenable number.

10311221032313 is a deficient number, since it is larger than the sum of its proper divisors (35542507).

10311221032313 is an equidigital number, since it uses as much as digits as its factorization.

10311221032313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35542506.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 10311221032313 its reverse (31323012211301), we get a palindrome (41634233243614).

The spelling of 10311221032313 in words is "ten trillion, three hundred eleven billion, two hundred twenty-one million, thirty-two thousand, three hundred thirteen".