213021302430234 has 32 divisors (see below), whose sum is σ = 426189748690944. Its totient is φ = 70982578321200.

The previous prime is 213021302430199. The next prime is 213021302430239. The reversal of 213021302430234 is 432034203120312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213021302430239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636928737 + ... + 637263099.

It is an arithmetic number, because the mean of its divisors is an integer number (13318429646592).

Almost surely, 2^{213021302430234} is an apocalyptic number.

213021302430234 is an abundant number, since it is smaller than the sum of its proper divisors (213168446260710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213021302430234 is a wasteful number, since it uses less digits than its factorization.

213021302430234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370722.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 213021302430234 its reverse (432034203120312), we get a palindrome (645055505550546).

The spelling of 213021302430234 in words is "two hundred thirteen trillion, twenty-one billion, three hundred two million, four hundred thirty thousand, two hundred thirty-four".