223130823 has 4 divisors (see below), whose sum is σ = 297507768. Its totient is φ = 148753880.

The previous prime is 223130807. The next prime is 223130833. The reversal of 223130823 is 328031322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223130823 - 2⁴ = 223130807 is a prime.

It is a super-3 number, since 3×223130823³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223130793 and 223130802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223130833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37188468 + ... + 37188473.

It is an arithmetic number, because the mean of its divisors is an integer number (74376942).

Almost surely, 2^223130823 is an apocalyptic number.

223130823 is a deficient number, since it is larger than the sum of its proper divisors (74376945).

223130823 is an equidigital number, since it uses as much as digits as its factorization.

223130823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74376944.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 223130823 is about 14937.5641588580. The cubic root of 223130823 is about 606.5312603178.

The spelling of 223130823 in words is "two hundred twenty-three million, one hundred thirty thousand, eight hundred twenty-three".