213044423 has 8 divisors (see below), whose sum is σ = 223675008. Its totient is φ = 202527864.

The previous prime is 213044417. The next prime is 213044443. The reversal of 213044423 is 324440312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213044423 - 2⁴ = 213044407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213044413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24665 + ... + 32162.

It is an arithmetic number, because the mean of its divisors is an integer number (27959376).

Almost surely, 2^213044423 is an apocalyptic number.

213044423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213044423 is a deficient number, since it is larger than the sum of its proper divisors (10630585).

213044423 is a wasteful number, since it uses less digits than its factorization.

213044423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57013.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 213044423 is about 14596.0413468858. The cubic root of 213044423 is about 597.2507768229.

Adding to 213044423 its reverse (324440312), we get a palindrome (537484735).

The spelling of 213044423 in words is "two hundred thirteen million, forty-four thousand, four hundred twenty-three".