1230003120 has 120 divisors (see below), whose sum is σ = 3940716528. Its totient is φ = 317360640.

The previous prime is 1230003109. The next prime is 1230003121. The reversal of 1230003120 is 213000321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1230003096 and 1230003105.

It is not an unprimeable number, because it can be changed into a prime (1230003121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227974 + ... + 233306.

Almost surely, 2^1230003120 is an apocalyptic number.

1230003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1970358264).

1230003120 is an abundant number, since it is smaller than the sum of its proper divisors (2710713408).

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

1230003120 is a wasteful number, since it uses less digits than its factorization.

1230003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411 (or 5374 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1230003120 is about 35071.4003142161. The cubic root of 1230003120 is about 1071.4421756241.

Adding to 1230003120 its reverse (213000321), we get a palindrome (1443003441).

The spelling of 1230003120 in words is "one billion, two hundred thirty million, three thousand, one hundred twenty".