2134243231 has 4 divisors (see below), whose sum is σ = 2134467864. Its totient is φ = 2134018600.

The previous prime is 2134243207. The next prime is 2134243247. The reversal of 2134243231 is 1323424312.

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 2134243231 - 2⁷ = 2134243103 is a prime.

It is a super-2 number, since 2×2134243231² = 9109988338138638722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2134243196 and 2134243205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134243261) 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, 97405 + ... + 117286.

It is an arithmetic number, because the mean of its divisors is an integer number (533616966).

Almost surely, 2^2134243231 is an apocalyptic number.

2134243231 is a deficient number, since it is larger than the sum of its proper divisors (224633).

2134243231 is an equidigital number, since it uses as much as digits as its factorization.

2134243231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224632.

The product of its digits is 3456, while the sum is 25.

The square root of 2134243231 is about 46197.8704162865. The cubic root of 2134243231 is about 1287.5021735722.

Adding to 2134243231 its reverse (1323424312), we get a palindrome (3457667543).

The spelling of 2134243231 in words is "two billion, one hundred thirty-four million, two hundred forty-three thousand, two hundred thirty-one".