1223321130 has 40 divisors (see below), whose sum is σ = 3289376772. Its totient is φ = 326218752.

The previous prime is 1223321119. The next prime is 1223321131. The reversal of 1223321130 is 311233221.

It can be written as a sum of positive squares in 2 ways, for example, as 1125132849 + 98188281 = 33543^2 + 9909^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1223321131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 754327 + ... + 755946.

Almost surely, 2^1223321130 is an apocalyptic number.

1223321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223321130 is an abundant number, since it is smaller than the sum of its proper divisors (2066055642).

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

1223321130 is a wasteful number, since it uses less digits than its factorization.

1223321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510292 (or 1510283 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1223321130 is about 34976.0079197155. The cubic root of 1223321130 is about 1069.4984489590.

Adding to 1223321130 its reverse (311233221), we get a palindrome (1534554351).

The spelling of 1223321130 in words is "one billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty".