213303423043 has 4 divisors (see below), whose sum is σ = 225850683240. Its totient is φ = 200756162848.

The previous prime is 213303423007. The next prime is 213303423059. The reversal of 213303423043 is 340324303312.

It is a happy number.

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 213303423043 - 2²¹ = 213301325891 is a prime.

It is a super-2 number, since 2×213303423043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213303423343) 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, 6273630073 + ... + 6273630106.

It is an arithmetic number, because the mean of its divisors is an integer number (56462670810).

Almost surely, 2^213303423043 is an apocalyptic number.

213303423043 is a deficient number, since it is larger than the sum of its proper divisors (12547260197).

213303423043 is a wasteful number, since it uses less digits than its factorization.

213303423043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547260196.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 213303423043 its reverse (340324303312), we get a palindrome (553627726355).

The spelling of 213303423043 in words is "two hundred thirteen billion, three hundred three million, four hundred twenty-three thousand, forty-three".