1223023230 has 288 divisors, whose sum is σ = 3858630048. Its totient is φ = 266872320.

The previous prime is 1223023201. The next prime is 1223023247. The reversal of 1223023230 is 323203221.

It is a happy number.

It is a super-2 number, since 2×1223023230² = 2991571642239265800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7503129 + ... + 7503291.

It is an arithmetic number, because the mean of its divisors is an integer number (13398021).

Almost surely, 2^1223023230 is an apocalyptic number.

1223023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223023230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929315024).

1223023230 is an abundant number, since it is smaller than the sum of its proper divisors (2635606818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223023230 is a wasteful number, since it uses less digits than its factorization.

1223023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1223023230 is about 34971.7490268931. The cubic root of 1223023230 is about 1069.4116280784.

Adding to 1223023230 its reverse (323203221), we get a palindrome (1546226451).

Subtracting from 1223023230 its reverse (323203221), we obtain a square (899820009 = 29997²).

The spelling of 1223023230 in words is "one billion, two hundred twenty-three million, twenty-three thousand, two hundred thirty".