201048121 has 4 divisors (see below), whose sum is σ = 206481892. Its totient is φ = 195614352.

The previous prime is 201048109. The next prime is 201048143. The reversal of 201048121 is 121840102.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133726096 + 67322025 = 11564^2 + 8205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201048121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201048191) 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, 2716830 + ... + 2716903.

It is an arithmetic number, because the mean of its divisors is an integer number (51620473).

Almost surely, 2^201048121 is an apocalyptic number.

It is an amenable number.

201048121 is a deficient number, since it is larger than the sum of its proper divisors (5433771).

201048121 is an equidigital number, since it uses as much as digits as its factorization.

201048121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433770.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 201048121 is about 14179.1438740144. The cubic root of 201048121 is about 585.8233430621.

Adding to 201048121 its reverse (121840102), we get a palindrome (322888223).

The spelling of 201048121 in words is "two hundred one million, forty-eight thousand, one hundred twenty-one".