201131233 has 4 divisors (see below), whose sum is σ = 212962500. Its totient is φ = 189299968.

The previous prime is 201131219. The next prime is 201131257. The reversal of 201131233 is 332131102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332131102 = 2 ⋅166065551.

It can be written as a sum of positive squares in 2 ways, for example, as 65804544 + 135326689 = 8112^2 + 11633^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131233 - 2⁵ = 201131201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131533) 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, 5915608 + ... + 5915641.

It is an arithmetic number, because the mean of its divisors is an integer number (53240625).

Almost surely, 2^201131233 is an apocalyptic number.

It is an amenable number.

201131233 is a deficient number, since it is larger than the sum of its proper divisors (11831267).

201131233 is a wasteful number, since it uses less digits than its factorization.

201131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831266.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 201131233 is about 14182.0743546210. The cubic root of 201131233 is about 585.9040571415.

Adding to 201131233 its reverse (332131102), we get a palindrome (533262335).

The spelling of 201131233 in words is "two hundred one million, one hundred thirty-one thousand, two hundred thirty-three".