4543213131 has 10 divisors (see below), whose sum is σ = 6786775292. Its totient is φ = 3028808700.

The previous prime is 4543213067. The next prime is 4543213151. The reversal of 4543213131 is 1313123454.

It is a happy number.

It is not a de Polignac number, because 4543213131 - 2⁶ = 4543213067 is a prime.

It is a super-2 number, since 2×4543213131² = 41281571107381646322, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4543213095 and 4543213104.

It is not an unprimeable number, because it can be changed into a prime (4543213151) 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 9 ways as a sum of consecutive naturals, for example, 28044445 + ... + 28044606.

Almost surely, 2^4543213131 is an apocalyptic number.

4543213131 is a deficient number, since it is larger than the sum of its proper divisors (2243562161).

4543213131 is an equidigital number, since it uses as much as digits as its factorization.

4543213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56089063 (or 56089054 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 4543213131 is about 67403.3614221131. The cubic root of 4543213131 is about 1656.2314874095.

Adding to 4543213131 its reverse (1313123454), we get a palindrome (5856336585).

The spelling of 4543213131 in words is "four billion, five hundred forty-three million, two hundred thirteen thousand, one hundred thirty-one".