202320040001 has 4 divisors (see below), whose sum is σ = 202509302100. Its totient is φ = 202130777904.

The previous prime is 202320039959. The next prime is 202320040003. The reversal of 202320040001 is 100040023202.

It is a Cunningham number, because it is equal to 449800²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94605456400 + 107714583601 = 307580^2 + 328199^2 .

It is a cyclic number.

It is not a de Polignac number, because 202320040001 - 2⁶ = 202320039937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202320040003) 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, 94629446 + ... + 94631583.

It is an arithmetic number, because the mean of its divisors is an integer number (50627325525).

Almost surely, 2^202320040001 is an apocalyptic number.

It is an amenable number.

202320040001 is a deficient number, since it is larger than the sum of its proper divisors (189262099).

202320040001 is a wasteful number, since it uses less digits than its factorization.

202320040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189262098.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 202320040001 its reverse (100040023202), we get a palindrome (302360063203).

The spelling of 202320040001 in words is "two hundred two billion, three hundred twenty million, forty thousand, one".