213443212433 has 32 divisors (see below), whose sum is σ = 247909116672. Its totient is φ = 181868544000.

The previous prime is 213443212429. The next prime is 213443212471. The reversal of 213443212433 is 334212344312.

It is not a de Polignac number, because 213443212433 - 2² = 213443212429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213443212433.

It is not an unprimeable number, because it can be changed into a prime (213443217433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2435585 + ... + 2521697.

It is an arithmetic number, because the mean of its divisors is an integer number (7747159896).

Almost surely, 2^213443212433 is an apocalyptic number.

213443212433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213443212433 is a deficient number, since it is larger than the sum of its proper divisors (34465904239).

213443212433 is a wasteful number, since it uses less digits than its factorization.

213443212433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86345.

The product of its digits is 41472, while the sum is 32.

Adding to 213443212433 its reverse (334212344312), we get a palindrome (547655556745).

The spelling of 213443212433 in words is "two hundred thirteen billion, four hundred forty-three million, two hundred twelve thousand, four hundred thirty-three".