201324000091 has 4 divisors (see below), whose sum is σ = 201362743792. Its totient is φ = 201285256392.

The previous prime is 201324000049. The next prime is 201324000181. The reversal of 201324000091 is 190000423102.

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

It is a cyclic number.

It is not a de Polignac number, because 201324000091 - 2¹⁹ = 201323475803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201324000041) 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, 19364055 + ... + 19374448.

It is an arithmetic number, because the mean of its divisors is an integer number (50340685948).

Almost surely, 2^201324000091 is an apocalyptic number.

201324000091 is a deficient number, since it is larger than the sum of its proper divisors (38743701).

201324000091 is an equidigital number, since it uses as much as digits as its factorization.

201324000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38743700.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201324000091 its reverse (190000423102), we get a palindrome (391324423193).

The spelling of 201324000091 in words is "two hundred one billion, three hundred twenty-four million, ninety-one", and thus it is an aban number.