1230320120 has 48 divisors (see below), whose sum is σ = 2791652040. Its totient is φ = 487996992.

The previous prime is 1230320093. The next prime is 1230320123. The reversal of 1230320120 is 210230321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230320095 and 1230320104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230320123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 644207 + ... + 646113.

Almost surely, 2^1230320120 is an apocalyptic number.

1230320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230320120 is an abundant number, since it is smaller than the sum of its proper divisors (1561331920).

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

1230320120 is a wasteful number, since it uses less digits than its factorization.

1230320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1230320120 is about 35075.9193749786. The cubic root of 1230320120 is about 1071.5342127878.

Adding to 1230320120 its reverse (210230321), we get a palindrome (1440550441).

It can be divided in two parts, 12303 and 20120, that added together give a palindrome (32423).

The spelling of 1230320120 in words is "one billion, two hundred thirty million, three hundred twenty thousand, one hundred twenty".