1303311013311 has 4 divisors (see below), whose sum is σ = 1737748017752. Its totient is φ = 868874008872.

The previous prime is 1303311013271. The next prime is 1303311013327. The reversal of 1303311013311 is 1133101133031.

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

It is not a de Polignac number, because 1303311013311 - 2⁷ = 1303311013183 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 (1303311013111) 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, 217218502216 + ... + 217218502221.

It is an arithmetic number, because the mean of its divisors is an integer number (434437004438).

Almost surely, 2^{1303311013311} is an apocalyptic number.

1303311013311 is a deficient number, since it is larger than the sum of its proper divisors (434437004441).

1303311013311 is an equidigital number, since it uses as much as digits as its factorization.

1303311013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434437004440.

The product of its (nonzero) digits is 243, while the sum is 21.

Adding to 1303311013311 its reverse (1133101133031), we get a palindrome (2436412146342).

The spelling of 1303311013311 in words is "one trillion, three hundred three billion, three hundred eleven million, thirteen thousand, three hundred eleven".