1230200120 has 32 divisors (see below), whose sum is σ = 2784946320. Its totient is φ = 489058560.

The previous prime is 1230200093. The next prime is 1230200129. The reversal of 1230200120 is 210020321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230200129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87821 + ... + 100860.

Almost surely, 2^1230200120 is an apocalyptic number.

1230200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230200120 is an abundant number, since it is smaller than the sum of its proper divisors (1554746200).

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

1230200120 is a wasteful number, since it uses less digits than its factorization.

1230200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188855 (or 188851 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1230200120 is about 35074.2087580034. The cubic root of 1230200120 is about 1071.4993740809.

Adding to 1230200120 its reverse (210020321), we get a palindrome (1440220441).

The spelling of 1230200120 in words is "one billion, two hundred thirty million, two hundred thousand, one hundred twenty".