1303320121111 has 4 divisors (see below), whose sum is σ = 1312696525000. Its totient is φ = 1293943717224.

The previous prime is 1303320121099. The next prime is 1303320121123. The reversal of 1303320121111 is 1111210233031.

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

It is an interprime number because it is at equal distance from previous prime (1303320121099) and next prime (1303320121123).

It is a cyclic number.

It is not a de Polignac number, because 1303320121111 - 2²⁹ = 1302783250199 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 (1303320121171) 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, 4688201736 + ... + 4688202013.

It is an arithmetic number, because the mean of its divisors is an integer number (328174131250).

Almost surely, 2^{1303320121111} is an apocalyptic number.

1303320121111 is a deficient number, since it is larger than the sum of its proper divisors (9376403889).

1303320121111 is an equidigital number, since it uses as much as digits as its factorization.

1303320121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376403888.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1303320121111 its reverse (1111210233031), we get a palindrome (2414530354142).

The spelling of 1303320121111 in words is "one trillion, three hundred three billion, three hundred twenty million, one hundred twenty-one thousand, one hundred eleven".