223215423 has 16 divisors (see below), whose sum is σ = 316636416. Its totient is φ = 139386240.

The previous prime is 223215371. The next prime is 223215427. The reversal of 223215423 is 324512322.

It is not a de Polignac number, because 223215423 - 2¹⁰ = 223214399 is a prime.

It is a super-3 number, since 3×223215423³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223215393 and 223215402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223215427) 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, 390 + ... + 21132.

It is an arithmetic number, because the mean of its divisors is an integer number (19789776).

Almost surely, 2^223215423 is an apocalyptic number.

223215423 is a deficient number, since it is larger than the sum of its proper divisors (93420993).

223215423 is a wasteful number, since it uses less digits than its factorization.

223215423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20974.

The product of its digits is 2880, while the sum is 24.

The square root of 223215423 is about 14940.3956774913. The cubic root of 223215423 is about 606.6079060277.

Adding to 223215423 its reverse (324512322), we get a palindrome (547727745).

The spelling of 223215423 in words is "two hundred twenty-three million, two hundred fifteen thousand, four hundred twenty-three".