1212333312203 has 16 divisors (see below), whose sum is σ = 1317029112000. Its totient is φ = 1109313532800.

The previous prime is 1212333312143. The next prime is 1212333312247. The reversal of 1212333312203 is 3022133332121.

It is a cyclic number.

It is not a de Polignac number, because 1212333312203 - 2²⁰ = 1212332263627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212333312263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175148 + ... + 1566953.

It is an arithmetic number, because the mean of its divisors is an integer number (82314319500).

Almost surely, 2^{1212333312203} is an apocalyptic number.

1212333312203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212333312203 is a deficient number, since it is larger than the sum of its proper divisors (104695799797).

1212333312203 is a wasteful number, since it uses less digits than its factorization.

1212333312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742582.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1212333312203 its reverse (3022133332121), we get a palindrome (4234466644324).

The spelling of 1212333312203 in words is "one trillion, two hundred twelve billion, three hundred thirty-three million, three hundred twelve thousand, two hundred three".