201132311 has 4 divisors (see below), whose sum is σ = 204429624. Its totient is φ = 197835000.

The previous prime is 201132307. The next prime is 201132319. The reversal of 201132311 is 113231102.

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 201132311 - 2² = 201132307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201132319) 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, 1648565 + ... + 1648686.

It is an arithmetic number, because the mean of its divisors is an integer number (51107406).

Almost surely, 2^201132311 is an apocalyptic number.

201132311 is a deficient number, since it is larger than the sum of its proper divisors (3297313).

201132311 is an equidigital number, since it uses as much as digits as its factorization.

201132311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297312.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 201132311 is about 14182.1123602939. The cubic root of 201132311 is about 585.9051038933.

Adding to 201132311 its reverse (113231102), we get a palindrome (314363413).

The spelling of 201132311 in words is "two hundred one million, one hundred thirty-two thousand, three hundred eleven".