211431432334 has 8 divisors (see below), whose sum is σ = 328083257160. Its totient is φ = 102070346616.

The previous prime is 211431432301. The next prime is 211431432353. The reversal of 211431432334 is 433234134112.

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

It is a junction number, because it is equal to n+sod(n) for n = 211431432296 and 211431432305.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1822684704 + ... + 1822684819.

It is an arithmetic number, because the mean of its divisors is an integer number (41010407145).

Almost surely, 2^211431432334 is an apocalyptic number.

211431432334 is a deficient number, since it is larger than the sum of its proper divisors (116651824826).

211431432334 is a wasteful number, since it uses less digits than its factorization.

211431432334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645369554.

The product of its digits is 20736, while the sum is 31.

Adding to 211431432334 its reverse (433234134112), we get a palindrome (644665566446).

The spelling of 211431432334 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thirty-two thousand, three hundred thirty-four".