20110311323 has 4 divisors (see below), whose sum is σ = 20305557168. Its totient is φ = 19915065480.

The previous prime is 20110311311. The next prime is 20110311329. The reversal of 20110311323 is 32311301102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32311301102 = 2 ⋅16155650551.

It is a cyclic number.

It is not a de Polignac number, because 20110311323 - 2⁴ = 20110311307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110311329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97622768 + ... + 97622973.

It is an arithmetic number, because the mean of its divisors is an integer number (5076389292).

Almost surely, 2^20110311323 is an apocalyptic number.

20110311323 is a deficient number, since it is larger than the sum of its proper divisors (195245845).

20110311323 is a wasteful number, since it uses less digits than its factorization.

20110311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195245844.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20110311323 its reverse (32311301102), we get a palindrome (52421612425).

The spelling of 20110311323 in words is "twenty billion, one hundred ten million, three hundred eleven thousand, three hundred twenty-three".