311303302103 has 4 divisors (see below), whose sum is σ = 311304643080. Its totient is φ = 311301961128.

The previous prime is 311303302069. The next prime is 311303302159. The reversal of 311303302103 is 301203303113.

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

It is a cyclic number.

It is not a de Polignac number, because 311303302103 - 2¹⁴ = 311303285719 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 (311303002103) 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, 222488 + ... + 819821.

It is an arithmetic number, because the mean of its divisors is an integer number (77826160770).

Almost surely, 2^311303302103 is an apocalyptic number.

311303302103 is a deficient number, since it is larger than the sum of its proper divisors (1340977).

311303302103 is a wasteful number, since it uses less digits than its factorization.

311303302103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340976.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 311303302103 its reverse (301203303113), we get a palindrome (612506605216).

The spelling of 311303302103 in words is "three hundred eleven billion, three hundred three million, three hundred two thousand, one hundred three".