213432023443 has 2 divisors, whose sum is σ = 213432023444. Its totient is φ = 213432023442.

The previous prime is 213432023381. The next prime is 213432023461. The reversal of 213432023443 is 344320234312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213432023443 is a prime.

It is not a weakly prime, because it can be changed into another prime (213432023743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106716011721 + 106716011722.

It is an arithmetic number, because the mean of its divisors is an integer number (106716011722).

Almost surely, 2^213432023443 is an apocalyptic number.

213432023443 is a deficient number, since it is larger than the sum of its proper divisors (1).

213432023443 is an equidigital number, since it uses as much as digits as its factorization.

213432023443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 213432023443 its reverse (344320234312), we get a palindrome (557752257755).

The spelling of 213432023443 in words is "two hundred thirteen billion, four hundred thirty-two million, twenty-three thousand, four hundred forty-three".