20321113323 has 32 divisors (see below), whose sum is σ = 31837146624. Its totient is φ = 11285885952.

The previous prime is 20321113289. The next prime is 20321113411. The reversal of 20321113323 is 32331112302.

It is not a de Polignac number, because 20321113323 - 2⁹ = 20321112811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20321113323.

It is not an unprimeable number, because it can be changed into a prime (20321113823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722011 + ... + 749627.

It is an arithmetic number, because the mean of its divisors is an integer number (994910832).

Almost surely, 2^20321113323 is an apocalyptic number.

20321113323 is a deficient number, since it is larger than the sum of its proper divisors (11516033301).

20321113323 is a wasteful number, since it uses less digits than its factorization.

20321113323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20321113323 its reverse (32331112302), we get a palindrome (52652225625).

The spelling of 20321113323 in words is "twenty billion, three hundred twenty-one million, one hundred thirteen thousand, three hundred twenty-three".