311320032103 has 16 divisors (see below), whose sum is σ = 314747161344. Its totient is φ = 307914064000.

The previous prime is 311320032083. The next prime is 311320032113. The reversal of 311320032103 is 301230023113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311320032103 is a prime.

It is a super-2 number, since 2×311320032103² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320032113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49752351 + ... + 49758607.

It is an arithmetic number, because the mean of its divisors is an integer number (19671697584).

Almost surely, 2^311320032103 is an apocalyptic number.

311320032103 is a deficient number, since it is larger than the sum of its proper divisors (3427129241).

311320032103 is a wasteful number, since it uses less digits than its factorization.

311320032103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311320032103 its reverse (301230023113), we get a palindrome (612550055216).

The spelling of 311320032103 in words is "three hundred eleven billion, three hundred twenty million, thirty-two thousand, one hundred three".