211440434343 has 8 divisors (see below), whose sum is σ = 282772304256. Its totient is φ = 140534427000.

The previous prime is 211440434341. The next prime is 211440434351. The reversal of 211440434343 is 343434044112.

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

It is not a de Polignac number, because 211440434343 - 2¹ = 211440434341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211440434341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106464483 + ... + 106466468.

It is an arithmetic number, because the mean of its divisors is an integer number (35346538032).

Almost surely, 2^211440434343 is an apocalyptic number.

211440434343 is a deficient number, since it is larger than the sum of its proper divisors (71331869913).

211440434343 is a wasteful number, since it uses less digits than its factorization.

211440434343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212931285.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 211440434343 its reverse (343434044112), we get a palindrome (554874478455).

The spelling of 211440434343 in words is "two hundred eleven billion, four hundred forty million, four hundred thirty-four thousand, three hundred forty-three".