1223130233 has 6 divisors (see below), whose sum is σ = 1324454814. Its totient is φ = 1129043136.

The previous prime is 1223130221. The next prime is 1223130281. The reversal of 1223130233 is 3320313221.

It can be written as a sum of positive squares in 3 ways, for example, as 18207289 + 1204922944 = 4267^2 + 34712^2 .

It is not a de Polignac number, because 1223130233 - 2⁶ = 1223130169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223130283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3618560 + ... + 3618897.

It is an arithmetic number, because the mean of its divisors is an integer number (220742469).

Almost surely, 2^1223130233 is an apocalyptic number.

1223130233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1223130233 is a deficient number, since it is larger than the sum of its proper divisors (101324581).

1223130233 is an equidigital number, since it uses as much as digits as its factorization.

1223130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237483 (or 7237470 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1223130233 is about 34973.2788425678. The cubic root of 1223130233 is about 1069.4428149800.

Adding to 1223130233 its reverse (3320313221), we get a palindrome (4543443454).

The spelling of 1223130233 in words is "one billion, two hundred twenty-three million, one hundred thirty thousand, two hundred thirty-three".