213221203043 has 2 divisors, whose sum is σ = 213221203044. Its totient is φ = 213221203042.

The previous prime is 213221203021. The next prime is 213221203061. The reversal of 213221203043 is 340302122312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213221203043 - 2⁶ = 213221202979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (213220203043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106610601521 + 106610601522.

It is an arithmetic number, because the mean of its divisors is an integer number (106610601522).

Almost surely, 2^213221203043 is an apocalyptic number.

213221203043 is a deficient number, since it is larger than the sum of its proper divisors (1).

213221203043 is an equidigital number, since it uses as much as digits as its factorization.

213221203043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213221203043 its reverse (340302122312), we get a palindrome (553523325355).

The spelling of 213221203043 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred three thousand, forty-three".