2134443231 has 24 divisors (see below), whose sum is σ = 3275270544. Its totient is φ = 1388249280.

The previous prime is 2134443209. The next prime is 2134443247. The reversal of 2134443231 is 1323444312.

2134443231 is a `hidden beast` number, since 213 + 4 + 443 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 2134443231 - 2²² = 2130248927 is a prime.

It is a super-2 number, since 2×2134443231² = 9111695812723438722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2134443195 and 2134443204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134442231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97156 + ... + 117081.

It is an arithmetic number, because the mean of its divisors is an integer number (136469606).

Almost surely, 2^2134443231 is an apocalyptic number.

2134443231 is a deficient number, since it is larger than the sum of its proper divisors (1140827313).

2134443231 is an equidigital number, since it uses as much as digits as its factorization.

2134443231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214293 (or 214281 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2134443231 is about 46200.0349675192. The cubic root of 2134443231 is about 1287.5423896057.

Adding to 2134443231 its reverse (1323444312), we get a palindrome (3457887543).

It can be divided in two parts, 213 and 4443231, that added together give a palindrome (4443444).

The spelling of 2134443231 in words is "two billion, one hundred thirty-four million, four hundred forty-three thousand, two hundred thirty-one".