20321032323 has 32 divisors (see below), whose sum is σ = 28835688960. Its totient is φ = 12693369600.

The previous prime is 20321032313. The next prime is 20321032349. The reversal of 20321032323 is 32323012302.

It is not a de Polignac number, because 20321032323 - 2¹⁰ = 20321031299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20321032323.

It is not an unprimeable number, because it can be changed into a prime (20321032313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2000365 + ... + 2010497.

It is an arithmetic number, because the mean of its divisors is an integer number (901115280).

Almost surely, 2^20321032323 is an apocalyptic number.

20321032323 is a deficient number, since it is larger than the sum of its proper divisors (8514656637).

20321032323 is a wasteful number, since it uses less digits than its factorization.

20321032323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20321032323 its reverse (32323012302), we get a palindrome (52644044625).

The spelling of 20321032323 in words is "twenty billion, three hundred twenty-one million, thirty-two thousand, three hundred twenty-three".