20233122001 has 4 divisors (see below), whose sum is σ = 20412176292. Its totient is φ = 20054067712.

The previous prime is 20233121977. The next prime is 20233122017. The reversal of 20233122001 is 10022133202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10022133202 = 2 ⋅5011066601.

It can be written as a sum of positive squares in 2 ways, for example, as 392990976 + 19840131025 = 19824^2 + 140855^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233122001 - 2¹³ = 20233113809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233122061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89526976 + ... + 89527201.

It is an arithmetic number, because the mean of its divisors is an integer number (5103044073).

Almost surely, 2^20233122001 is an apocalyptic number.

It is an amenable number.

20233122001 is a deficient number, since it is larger than the sum of its proper divisors (179054291).

20233122001 is a wasteful number, since it uses less digits than its factorization.

20233122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179054290.

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

Adding to 20233122001 its reverse (10022133202), we get a palindrome (30255255203).

The spelling of 20233122001 in words is "twenty billion, two hundred thirty-three million, one hundred twenty-two thousand, one".