213033552243 has 4 divisors (see below), whose sum is σ = 284044736328. Its totient is φ = 142022368160.

The previous prime is 213033552227. The next prime is 213033552253. The reversal of 213033552243 is 342255330312.

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 213033552243 - 2⁴ = 213033552227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213033552223) 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, 35505592038 + ... + 35505592043.

It is an arithmetic number, because the mean of its divisors is an integer number (71011184082).

Almost surely, 2^213033552243 is an apocalyptic number.

213033552243 is a deficient number, since it is larger than the sum of its proper divisors (71011184085).

213033552243 is an equidigital number, since it uses as much as digits as its factorization.

213033552243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71011184084.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 213033552243 its reverse (342255330312), we get a palindrome (555288882555).

The spelling of 213033552243 in words is "two hundred thirteen billion, thirty-three million, five hundred fifty-two thousand, two hundred forty-three".