1210200003 has 24 divisors (see below), whose sum is σ = 1842698000. Its totient is φ = 763245504.

The previous prime is 1210199989. The next prime is 1210200053. The reversal of 1210200003 is 3000020121.

It is a happy number.

It is not a de Polignac number, because 1210200003 - 2⁵ = 1210199971 is a prime.

It is a super-2 number, since 2×1210200003² = 2929168094522400018, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210200053) 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, 124773 + ... + 134121.

Almost surely, 2^1210200003 is an apocalyptic number.

1210200003 is a deficient number, since it is larger than the sum of its proper divisors (632497997).

1210200003 is a wasteful number, since it uses less digits than its factorization.

1210200003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131 (or 10128 counting only the distinct ones).

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

The square root of 1210200003 is about 34787.9289840600. The cubic root of 1210200003 is about 1065.6609452798.

Adding to 1210200003 its reverse (3000020121), we get a palindrome (4210220124).

The spelling of 1210200003 in words is "one billion, two hundred ten million, two hundred thousand, three".