211434321434 has 8 divisors (see below), whose sum is σ = 362458836768. Its totient is φ = 90614709180.

The previous prime is 211434321431. The next prime is 211434321443. The reversal of 211434321434 is 434123434112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211434321434.

It is not an unprimeable number, because it can be changed into a prime (211434321431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7551225752 + ... + 7551225779.

It is an arithmetic number, because the mean of its divisors is an integer number (45307354596).

Almost surely, 2^211434321434 is an apocalyptic number.

211434321434 is a deficient number, since it is larger than the sum of its proper divisors (151024515334).

211434321434 is a wasteful number, since it uses less digits than its factorization.

211434321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15102451540.

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

Adding to 211434321434 its reverse (434123434112), we get a palindrome (645557755546).

The spelling of 211434321434 in words is "two hundred eleven billion, four hundred thirty-four million, three hundred twenty-one thousand, four hundred thirty-four".