1321201113303 has 8 divisors (see below), whose sum is σ = 1764349695216. Its totient is φ = 879426636800.

The previous prime is 1321201113293. The next prime is 1321201113313. The reversal of 1321201113303 is 3033111021231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1321201113293) and next prime (1321201113313).

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 1321201113303 - 2⁴⁰ = 221689485527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321201113303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321201113313) 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, 343524108 + ... + 343527953.

It is an arithmetic number, because the mean of its divisors is an integer number (220543711902).

Almost surely, 2^{1321201113303} is an apocalyptic number.

1321201113303 is a deficient number, since it is larger than the sum of its proper divisors (443148581913).

1321201113303 is an equidigital number, since it uses as much as digits as its factorization.

1321201113303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687052705.

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

Adding to 1321201113303 its reverse (3033111021231), we get a palindrome (4354312134534).

The spelling of 1321201113303 in words is "one trillion, three hundred twenty-one billion, two hundred one million, one hundred thirteen thousand, three hundred three".