1213312110303 has 8 divisors (see below), whose sum is σ = 1617780279600. Its totient is φ = 808859340608.

The previous prime is 1213312110193. The next prime is 1213312110343. The reversal of 1213312110303 is 3030112133121.

It is a happy number.

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 1213312110303 - 2⁹ = 1213312109791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213312110303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213312110343) 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, 3664788 + ... + 3982121.

It is an arithmetic number, because the mean of its divisors is an integer number (202222534950).

Almost surely, 2^{1213312110303} is an apocalyptic number.

1213312110303 is a deficient number, since it is larger than the sum of its proper divisors (404468169297).

1213312110303 is an equidigital number, since it uses as much as digits as its factorization.

1213312110303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699801.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1213312110303 its reverse (3030112133121), we get a palindrome (4243424243424).

The spelling of 1213312110303 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, one hundred ten thousand, three hundred three".