1203330320311 has 6 divisors (see below), whose sum is σ = 1399792413480. Its totient is φ = 1031425988796.

The previous prime is 1203330320261. The next prime is 1203330320321. The reversal of 1203330320311 is 1130230333021.

It is not a de Polignac number, because 1203330320311 - 2³⁹ = 653574506423 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 (1203330320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12278880771 + ... + 12278880868.

It is an arithmetic number, because the mean of its divisors is an integer number (233298735580).

Almost surely, 2^{1203330320311} is an apocalyptic number.

1203330320311 is a deficient number, since it is larger than the sum of its proper divisors (196462093169).

1203330320311 is an equidigital number, since it uses as much as digits as its factorization.

1203330320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24557761653 (or 24557761646 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1203330320311 its reverse (1130230333021), we get a palindrome (2333560653332).

The spelling of 1203330320311 in words is "one trillion, two hundred three billion, three hundred thirty million, three hundred twenty thousand, three hundred eleven".