213389916723 has 16 divisors (see below), whose sum is σ = 318407555200. Its totient is φ = 141236489160.

The previous prime is 213389916673. The next prime is 213389916767. The reversal of 213389916723 is 327619983312.

It is not a de Polignac number, because 213389916723 - 2²¹ = 213387819571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213389916723.

It is not an unprimeable number, because it can be changed into a prime (213389916023) 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, 28425493 + ... + 28432998.

It is an arithmetic number, because the mean of its divisors is an integer number (19900472200).

Almost surely, 2^213389916723 is an apocalyptic number.

213389916723 is a deficient number, since it is larger than the sum of its proper divisors (105017638477).

213389916723 is a wasteful number, since it uses less digits than its factorization.

213389916723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56858639 (or 56858633 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 213389916723 in words is "two hundred thirteen billion, three hundred eighty-nine million, nine hundred sixteen thousand, seven hundred twenty-three".