1213321010303 has 8 divisors (see below), whose sum is σ = 1236242217168. Its totient is φ = 1190400853824.

The previous prime is 1213321010281. The next prime is 1213321010323. The reversal of 1213321010303 is 3030101233121.

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 1213321010303 - 2²⁰ = 1213319961727 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 (1213321010323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2304200 + ... + 2781362.

It is an arithmetic number, because the mean of its divisors is an integer number (154530277146).

Almost surely, 2^{1213321010303} is an apocalyptic number.

1213321010303 is a deficient number, since it is larger than the sum of its proper divisors (22921206865).

1213321010303 is an equidigital number, since it uses as much as digits as its factorization.

1213321010303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525193.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1213321010303 its reverse (3030101233121), we get a palindrome (4243422243424).

The spelling of 1213321010303 in words is "one trillion, two hundred thirteen billion, three hundred twenty-one million, ten thousand, three hundred three".