1200003210 has 192 divisors, whose sum is σ = 3685264128. Its totient is φ = 265254912.

The previous prime is 1200003143. The next prime is 1200003221. The reversal of 1200003210 is 123000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200003192 and 1200003201.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2771154 + ... + 2771586.

It is an arithmetic number, because the mean of its divisors is an integer number (19194084).

Almost surely, 2^1200003210 is an apocalyptic number.

1200003210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200003210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842632064).

1200003210 is an abundant number, since it is smaller than the sum of its proper divisors (2485260918).

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

1200003210 is a wasteful number, since it uses less digits than its factorization.

1200003210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1200003210 is about 34641.0624837057. The cubic root of 1200003210 is about 1062.6595167190.

Adding to 1200003210 its reverse (123000021), we get a palindrome (1323003231).

The spelling of 1200003210 in words is "one billion, two hundred million, three thousand, two hundred ten".