211959361223 has 16 divisors (see below), whose sum is σ = 234758036160. Its totient is φ = 190350944256.

The previous prime is 211959361217. The next prime is 211959361259. The reversal of 211959361223 is 322163959112.

It is not a de Polignac number, because 211959361223 - 2¹⁶ = 211959295687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211959361423) 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, 502790 + ... + 822627.

It is an arithmetic number, because the mean of its divisors is an integer number (14672377260).

Almost surely, 2^211959361223 is an apocalyptic number.

211959361223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211959361223 is a deficient number, since it is larger than the sum of its proper divisors (22798674937).

211959361223 is a wasteful number, since it uses less digits than its factorization.

211959361223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325866.

The product of its digits is 174960, while the sum is 44.

The spelling of 211959361223 in words is "two hundred eleven billion, nine hundred fifty-nine million, three hundred sixty-one thousand, two hundred twenty-three".