43201131 has 32 divisors (see below), whose sum is σ = 63452160. Its totient is φ = 26036736.

The previous prime is 43201129. The next prime is 43201133. The reversal of 43201131 is 13110234.

43201131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43201129) and next prime (43201133).

It is not a de Polignac number, because 43201131 - 2¹ = 43201129 is a prime.

It is a super-2 number, since 2×43201131² = 3732675439358322, 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 43201131.

It is not an unprimeable number, because it can be changed into a prime (43201133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160465 + ... + 160733.

It is an arithmetic number, because the mean of its divisors is an integer number (1982880).

Almost surely, 2^43201131 is an apocalyptic number.

43201131 is a deficient number, since it is larger than the sum of its proper divisors (20251029).

43201131 is a wasteful number, since it uses less digits than its factorization.

43201131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

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

The square root of 43201131 is about 6572.7567275839. The cubic root of 43201131 is about 350.8851906552.

Adding to 43201131 its reverse (13110234), we get a palindrome (56311365).

The spelling of 43201131 in words is "forty-three million, two hundred one thousand, one hundred thirty-one".