1212203001003 has 8 divisors (see below), whose sum is σ = 1668408431616. Its totient is φ = 782066452200.

The previous prime is 1212203000959. The next prime is 1212203001017. The reversal of 1212203001003 is 3001003022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212203001003 - 2⁸ = 1212203000747 is a prime.

It is a super-2 number, since 2×1212203001003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212203001073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6517220343 + ... + 6517220528.

It is an arithmetic number, because the mean of its divisors is an integer number (208551053952).

Almost surely, 2^{1212203001003} is an apocalyptic number.

1212203001003 is a deficient number, since it is larger than the sum of its proper divisors (456205430613).

1212203001003 is a wasteful number, since it uses less digits than its factorization.

1212203001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13034440905.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1212203001003 its reverse (3001003022121), we get a palindrome (4213206023124).

The spelling of 1212203001003 in words is "one trillion, two hundred twelve billion, two hundred three million, one thousand, three".