1223630120 has 32 divisors (see below), whose sum is σ = 2756246400. Its totient is φ = 488904768.

The previous prime is 1223630113. The next prime is 1223630137. The reversal of 1223630120 is 210363221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1223630092 and 1223630101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20117 + ... + 53403.

It is an arithmetic number, because the mean of its divisors is an integer number (86132700).

Almost surely, 2^1223630120 is an apocalyptic number.

1223630120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223630120 is an abundant number, since it is smaller than the sum of its proper divisors (1532616280).

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

1223630120 is a wasteful number, since it uses less digits than its factorization.

1223630120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34217 (or 34213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1223630120 is about 34980.4248116000. The cubic root of 1223630120 is about 1069.5884870524.

Adding to 1223630120 its reverse (210363221), we get a palindrome (1433993341).

The spelling of 1223630120 in words is "one billion, two hundred twenty-three million, six hundred thirty thousand, one hundred twenty".