1211210120303 has 8 divisors (see below), whose sum is σ = 1222061567568. Its totient is φ = 1200361002624.

The previous prime is 1211210120297. The next prime is 1211210120389. The reversal of 1211210120303 is 3030210121121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211210120303 - 2⁸ = 1211210120047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211210120803) 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, 470600 + ... + 1626002.

It is an arithmetic number, because the mean of its divisors is an integer number (152757695946).

Almost surely, 2^{1211210120303} is an apocalyptic number.

1211210120303 is a deficient number, since it is larger than the sum of its proper divisors (10851447265).

1211210120303 is a wasteful number, since it uses less digits than its factorization.

1211210120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164793.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1211210120303 its reverse (3030210121121), we get a palindrome (4241420241424).

The spelling of 1211210120303 in words is "one trillion, two hundred eleven billion, two hundred ten million, one hundred twenty thousand, three hundred three".