20313301331 has 4 divisors (see below), whose sum is σ = 20392341672. Its totient is φ = 20234260992.

The previous prime is 20313301319. The next prime is 20313301357. The reversal of 20313301331 is 13310331302.

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 20313301331 - 2³⁴ = 3133432147 is a prime.

It is a super-2 number, since 2×20313301331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313301301) 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, 39519785 + ... + 39520298.

It is an arithmetic number, because the mean of its divisors is an integer number (5098085418).

Almost surely, 2^20313301331 is an apocalyptic number.

20313301331 is a deficient number, since it is larger than the sum of its proper divisors (79040341).

20313301331 is an equidigital number, since it uses as much as digits as its factorization.

20313301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79040340.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 20313301331 its reverse (13310331302), we get a palindrome (33623632633).

The spelling of 20313301331 in words is "twenty billion, three hundred thirteen million, three hundred one thousand, three hundred thirty-one".