211723283156 has 96 divisors (see below), whose sum is σ = 474186230784. Its totient is φ = 80311392000.

The previous prime is 211723283153. The next prime is 211723283179. The reversal of 211723283156 is 651382327112.

211723283156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211723283153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6183275 + ... + 6217421.

It is an arithmetic number, because the mean of its divisors is an integer number (4939439904).

Almost surely, 2^211723283156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211723283156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237093115392).

211723283156 is an abundant number, since it is smaller than the sum of its proper divisors (262462947628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211723283156 is a wasteful number, since it uses less digits than its factorization.

211723283156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34701 (or 34699 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The spelling of 211723283156 in words is "two hundred eleven billion, seven hundred twenty-three million, two hundred eighty-three thousand, one hundred fifty-six".