20331112201 has 2 divisors, whose sum is σ = 20331112202. Its totient is φ = 20331112200.

The previous prime is 20331112187. The next prime is 20331112213. The reversal of 20331112201 is 10221113302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20005273600 + 325838601 = 141440^2 + 18051^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331112201 - 2⁵ = 20331112169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331112271) 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 as a sum of consecutive naturals, namely, 10165556100 + 10165556101.

It is an arithmetic number, because the mean of its divisors is an integer number (10165556101).

Almost surely, 2^20331112201 is an apocalyptic number.

It is an amenable number.

20331112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331112201 is an equidigital number, since it uses as much as digits as its factorization.

20331112201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20331112201 its reverse (10221113302), we get a palindrome (30552225503).

It can be divided in two parts, 203311 and 12201, that added together give a palindrome (215512).

The spelling of 20331112201 in words is "twenty billion, three hundred thirty-one million, one hundred twelve thousand, two hundred one".