201232131 has 16 divisors (see below), whose sum is σ = 284021760. Its totient is φ = 126514080.

The previous prime is 201232127. The next prime is 201232153. The reversal of 201232131 is 131232102.

It is not a de Polignac number, because 201232131 - 2² = 201232127 is a prime.

It is a super-2 number, since 2×201232131² = 80988741093602322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201232131.

It is not an unprimeable number, because it can be changed into a prime (201232121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23155 + ... + 30636.

It is an arithmetic number, because the mean of its divisors is an integer number (17751360).

Almost surely, 2^201232131 is an apocalyptic number.

201232131 is a deficient number, since it is larger than the sum of its proper divisors (82789629).

201232131 is a wasteful number, since it uses less digits than its factorization.

201232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53866.

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

The square root of 201232131 is about 14185.6311456347. The cubic root of 201232131 is about 586.0020141885.

Adding to 201232131 its reverse (131232102), we get a palindrome (332464233).

It can be divided in two parts, 2012 and 32131, that added together give a palindrome (34143).

The spelling of 201232131 in words is "two hundred one million, two hundred thirty-two thousand, one hundred thirty-one".