20323122001 has 16 divisors (see below), whose sum is σ = 25032357504. Its totient is φ = 16067435904.

The previous prime is 20323121999. The next prime is 20323122007. The reversal of 20323122001 is 10022132302.

It is not a de Polignac number, because 20323122001 - 2¹ = 20323121999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323122007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33501 + ... + 204373.

It is an arithmetic number, because the mean of its divisors is an integer number (1564522344).

Almost surely, 2^20323122001 is an apocalyptic number.

It is an amenable number.

20323122001 is a deficient number, since it is larger than the sum of its proper divisors (4709235503).

20323122001 is a wasteful number, since it uses less digits than its factorization.

20323122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172200.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20323122001 its reverse (10022132302), we get a palindrome (30345254303).

The spelling of 20323122001 in words is "twenty billion, three hundred twenty-three million, one hundred twenty-two thousand, one".