20320112201 has 4 divisors (see below), whose sum is σ = 20358965712. Its totient is φ = 20281258692.

The previous prime is 20320112171. The next prime is 20320112209. The reversal of 20320112201 is 10221102302.

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 20320112201 - 2³⁴ = 3140243017 is a prime.

It is a super-2 number, since 2×20320112201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20320112209) 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 3 ways as a sum of consecutive naturals, for example, 19425971 + ... + 19427016.

It is an arithmetic number, because the mean of its divisors is an integer number (5089741428).

Almost surely, 2^20320112201 is an apocalyptic number.

It is an amenable number.

20320112201 is a deficient number, since it is larger than the sum of its proper divisors (38853511).

20320112201 is an equidigital number, since it uses as much as digits as its factorization.

20320112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38853510.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20320112201 its reverse (10221102302), we get a palindrome (30541214503).

The spelling of 20320112201 in words is "twenty billion, three hundred twenty million, one hundred twelve thousand, two hundred one".