20312032001 has 4 divisors (see below), whose sum is σ = 20312574912. Its totient is φ = 20311489092.

The previous prime is 20312031979. The next prime is 20312032007. The reversal of 20312032001 is 10023021302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20312032001 - 2⁶ = 20312031937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20312032007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210821 + ... + 291666.

It is an arithmetic number, because the mean of its divisors is an integer number (5078143728).

Almost surely, 2^20312032001 is an apocalyptic number.

It is an amenable number.

20312032001 is a deficient number, since it is larger than the sum of its proper divisors (542911).

20312032001 is an equidigital number, since it uses as much as digits as its factorization.

20312032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542910.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20312032001 its reverse (10023021302), we get a palindrome (30335053303).

The spelling of 20312032001 in words is "twenty billion, three hundred twelve million, thirty-two thousand, one".