213144433430 has 16 divisors (see below), whose sum is σ = 383750777520. Its totient is φ = 85237596192.

The previous prime is 213144433391. The next prime is 213144433459. The reversal of 213144433430 is 34334441312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477744 + ... + 2562323.

It is an arithmetic number, because the mean of its divisors is an integer number (23984423595).

Almost surely, 2^213144433430 is an apocalyptic number.

213144433430 is a deficient number, since it is larger than the sum of its proper divisors (170606344090).

213144433430 is a wasteful number, since it uses less digits than its factorization.

213144433430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044303.

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

Adding to 213144433430 its reverse (34334441312), we get a palindrome (247478874742).

The spelling of 213144433430 in words is "two hundred thirteen billion, one hundred forty-four million, four hundred thirty-three thousand, four hundred thirty".