201232311 has 16 divisors (see below), whose sum is σ = 310842624. Its totient is φ = 113413824.

The previous prime is 201232309. The next prime is 201232357. The reversal of 201232311 is 113232102.

It is not a de Polignac number, because 201232311 - 2¹ = 201232309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201232411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64101 + ... + 67166.

It is an arithmetic number, because the mean of its divisors is an integer number (19427664).

Almost surely, 2^201232311 is an apocalyptic number.

201232311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201232311 is a deficient number, since it is larger than the sum of its proper divisors (109610313).

201232311 is a wasteful number, since it uses less digits than its factorization.

201232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131350.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201232311 is about 14185.6374900813. The cubic root of 201232311 is about 586.0021889127.

Adding to 201232311 its reverse (113232102), we get a palindrome (314464413).

The spelling of 201232311 in words is "two hundred one million, two hundred thirty-two thousand, three hundred eleven".