201125331 has 12 divisors (see below), whose sum is σ = 316924920. Its totient is φ = 121894080.

The previous prime is 201125311. The next prime is 201125333. The reversal of 201125331 is 133521102.

201125331 is a `hidden beast` number, since 20 + 112 + 533 + 1 = 666.

It is not a de Polignac number, because 201125331 - 2⁵ = 201125299 is a prime.

It is a super-2 number, since 2×201125331² = 80902797539719122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201125333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015686 + ... + 1015883.

It is an arithmetic number, because the mean of its divisors is an integer number (26410410).

Almost surely, 2^201125331 is an apocalyptic number.

201125331 is a deficient number, since it is larger than the sum of its proper divisors (115799589).

201125331 is a wasteful number, since it uses less digits than its factorization.

201125331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031586 (or 2031583 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 201125331 is about 14181.8662735199. The cubic root of 201125331 is about 585.8983261576.

Adding to 201125331 its reverse (133521102), we get a palindrome (334646433).

The spelling of 201125331 in words is "two hundred one million, one hundred twenty-five thousand, three hundred thirty-one".