213320043 has 12 divisors (see below), whose sum is σ = 311842440. Its totient is φ = 140499456.

The previous prime is 213320039. The next prime is 213320047. The reversal of 213320043 is 340023312.

213320043 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 (213320039) and next prime (213320047).

It is not a de Polignac number, because 213320043 - 2² = 213320039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213319998 and 213320025.

It is not an unprimeable number, because it can be changed into a prime (213320047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142038 + ... + 143531.

It is an arithmetic number, because the mean of its divisors is an integer number (25986870).

Almost surely, 2^213320043 is an apocalyptic number.

213320043 is a deficient number, since it is larger than the sum of its proper divisors (98522397).

213320043 is a wasteful number, since it uses less digits than its factorization.

213320043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285658 (or 285655 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213320043 is about 14605.4798962581. The cubic root of 213320043 is about 597.5082244160.

Adding to 213320043 its reverse (340023312), we get a palindrome (553343355).

The spelling of 213320043 in words is "two hundred thirteen million, three hundred twenty thousand, forty-three".