213441431234 has 16 divisors (see below), whose sum is σ = 322301449536. Its totient is φ = 106008037200.

The previous prime is 213441431227. The next prime is 213441431261. The reversal of 213441431234 is 432134144312.

It is a self number, because there is not a number n which added to its sum of digits gives 213441431234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923189 + ... + 1130999.

It is an arithmetic number, because the mean of its divisors is an integer number (20143840596).

Almost surely, 2^213441431234 is an apocalyptic number.

213441431234 is a deficient number, since it is larger than the sum of its proper divisors (108860018302).

213441431234 is a wasteful number, since it uses less digits than its factorization.

213441431234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211241.

The product of its digits is 27648, while the sum is 32.

Adding to 213441431234 its reverse (432134144312), we get a palindrome (645575575546).

The spelling of 213441431234 in words is "two hundred thirteen billion, four hundred forty-one million, four hundred thirty-one thousand, two hundred thirty-four".