20341331311 has 4 divisors (see below), whose sum is σ = 23247235792. Its totient is φ = 17435426832.

The previous prime is 20341331279. The next prime is 20341331341. The reversal of 20341331311 is 11313314302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11313314302 = 2 ⋅5656657151.

It is a cyclic number.

It is not a de Polignac number, because 20341331311 - 2⁵ = 20341331279 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 (20341331341) 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, 1452952230 + ... + 1452952243.

It is an arithmetic number, because the mean of its divisors is an integer number (5811808948).

Almost surely, 2^20341331311 is an apocalyptic number.

20341331311 is a deficient number, since it is larger than the sum of its proper divisors (2905904481).

20341331311 is an equidigital number, since it uses as much as digits as its factorization.

20341331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905904480.

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

Adding to 20341331311 its reverse (11313314302), we get a palindrome (31654645613).

The spelling of 20341331311 in words is "twenty billion, three hundred forty-one million, three hundred thirty-one thousand, three hundred eleven".