20323211311 has 8 divisors (see below), whose sum is σ = 21897512000. Its totient is φ = 18750478752.

The previous prime is 20323211299. The next prime is 20323211327. The reversal of 20323211311 is 11311232302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323211311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323211351) 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, 365040 + ... + 417013.

It is an arithmetic number, because the mean of its divisors is an integer number (2737189000).

Almost surely, 2^20323211311 is an apocalyptic number.

20323211311 is a deficient number, since it is larger than the sum of its proper divisors (1574300689).

20323211311 is a wasteful number, since it uses less digits than its factorization.

20323211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784065.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20323211311 its reverse (11311232302), we get a palindrome (31634443613).

The spelling of 20323211311 in words is "twenty billion, three hundred twenty-three million, two hundred eleven thousand, three hundred eleven".