201201243 has 4 divisors (see below), whose sum is σ = 268268328. Its totient is φ = 134134160.

The previous prime is 201201193. The next prime is 201201251. The reversal of 201201243 is 342102102.

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 201201243 - 2¹² = 201197147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201201283) 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, 33533538 + ... + 33533543.

It is an arithmetic number, because the mean of its divisors is an integer number (67067082).

Almost surely, 2^201201243 is an apocalyptic number.

201201243 is a deficient number, since it is larger than the sum of its proper divisors (67067085).

201201243 is an equidigital number, since it uses as much as digits as its factorization.

201201243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67067084.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 201201243 is about 14184.5423965668. The cubic root of 201201243 is about 585.9720299836.

Adding to 201201243 its reverse (342102102), we get a palindrome (543303345).

The spelling of 201201243 in words is "two hundred one million, two hundred one thousand, two hundred forty-three".