201000301243 has 4 divisors (see below), whose sum is σ = 229714630000. Its totient is φ = 172285972488.

The previous prime is 201000301223. The next prime is 201000301247. The reversal of 201000301243 is 342103000102.

It is a happy number.

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

It is not a de Polignac number, because 201000301243 - 2²⁹ = 200463430331 is a prime.

It is a super-2 number, since 2×201000301243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000301247) 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, 14357164368 + ... + 14357164381.

It is an arithmetic number, because the mean of its divisors is an integer number (57428657500).

Almost surely, 2^201000301243 is an apocalyptic number.

201000301243 is a deficient number, since it is larger than the sum of its proper divisors (28714328757).

201000301243 is an equidigital number, since it uses as much as digits as its factorization.

201000301243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28714328756.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201000301243 its reverse (342103000102), we get a palindrome (543103301345).

The spelling of 201000301243 in words is "two hundred one billion, three hundred one thousand, two hundred forty-three".