211005430354 has 16 divisors (see below), whose sum is σ = 333845045280. Its totient is φ = 99746367840.

The previous prime is 211005430319. The next prime is 211005430423. The reversal of 211005430354 is 453034500112.

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, 5635899 + ... + 5673214.

It is an arithmetic number, because the mean of its divisors is an integer number (20865315330).

Almost surely, 2^211005430354 is an apocalyptic number.

211005430354 is a deficient number, since it is larger than the sum of its proper divisors (122839614926).

211005430354 is a wasteful number, since it uses less digits than its factorization.

211005430354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309625.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 211005430354 its reverse (453034500112), we get a palindrome (664039930466).

The spelling of 211005430354 in words is "two hundred eleven billion, five million, four hundred thirty thousand, three hundred fifty-four".