1212401110303 has 4 divisors (see below), whose sum is σ = 1212429605688. Its totient is φ = 1212372614920.

The previous prime is 1212401110243. The next prime is 1212401110313. The reversal of 1212401110303 is 3030111042121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212401110303 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 (1212401110313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14183776 + ... + 14268997.

It is an arithmetic number, because the mean of its divisors is an integer number (303107401422).

Almost surely, 2^{1212401110303} is an apocalyptic number.

1212401110303 is a deficient number, since it is larger than the sum of its proper divisors (28495385).

1212401110303 is an equidigital number, since it uses as much as digits as its factorization.

1212401110303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28495384.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212401110303 its reverse (3030111042121), we get a palindrome (4242512152424).

The spelling of 1212401110303 in words is "one trillion, two hundred twelve billion, four hundred one million, one hundred ten thousand, three hundred three".