212587113823 has 24 divisors (see below), whose sum is σ = 255474401280. Its totient is φ = 176200058160.

The previous prime is 212587113803. The next prime is 212587113829. The reversal of 212587113823 is 328311785212.

It is not a de Polignac number, because 212587113823 - 2²⁵ = 212553559391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212587113823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212587113829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1888090 + ... + 1997512.

It is an arithmetic number, because the mean of its divisors is an integer number (10644766720).

Almost surely, 2^212587113823 is an apocalyptic number.

212587113823 is a deficient number, since it is larger than the sum of its proper divisors (42887287457).

212587113823 is a wasteful number, since it uses less digits than its factorization.

212587113823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110747 (or 110740 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The spelling of 212587113823 in words is "two hundred twelve billion, five hundred eighty-seven million, one hundred thirteen thousand, eight hundred twenty-three".