201113251 has 8 divisors (see below), whose sum is σ = 204837984. Its totient is φ = 197413440.

The previous prime is 201113249. The next prime is 201113261. The reversal of 201113251 is 152311102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201113251 - 2¹ = 201113249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10465 + ... + 22621.

It is an arithmetic number, because the mean of its divisors is an integer number (25604748).

Almost surely, 2^201113251 is an apocalyptic number.

201113251 is a deficient number, since it is larger than the sum of its proper divisors (3724733).

201113251 is a wasteful number, since it uses less digits than its factorization.

201113251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 201113251 is about 14181.4403711330. The cubic root of 201113251 is about 585.8865958375.

Adding to 201113251 its reverse (152311102), we get a palindrome (353424353).

The spelling of 201113251 in words is "two hundred one million, one hundred thirteen thousand, two hundred fifty-one".