20311001130313 has 8 divisors (see below), whose sum is σ = 20695237705800. Its totient is φ = 19926801967488.

The previous prime is 20311001130283. The next prime is 20311001130323. The reversal of 20311001130313 is 31303110011302.

It can be written as a sum of positive squares in 4 ways, for example, as 3231031415049 + 17079969715264 = 1797507^2 + 4132792^2 .

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 20311001130313 - 2²⁵ = 20310967575881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20311001130323) 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, 8255908 + ... + 10429861.

It is an arithmetic number, because the mean of its divisors is an integer number (2586904713225).

Almost surely, 2^{20311001130313} is an apocalyptic number.

It is an amenable number.

20311001130313 is a deficient number, since it is larger than the sum of its proper divisors (384236575487).

20311001130313 is a wasteful number, since it uses less digits than its factorization.

20311001130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18706331.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 20311001130313 its reverse (31303110011302), we get a palindrome (51614111141615).

The spelling of 20311001130313 in words is "twenty trillion, three hundred eleven billion, one million, one hundred thirty thousand, three hundred thirteen".