30111312303 has 16 divisors (see below), whose sum is σ = 44616580960. Its totient is φ = 20070955008.

The previous prime is 30111312299. The next prime is 30111312313. The reversal of 30111312303 is 30321311103.

It is a happy number.

30111312303 is a `hidden beast` number, since 301 + 1 + 131 + 230 + 3 = 666.

It is not a de Polignac number, because 30111312303 - 2² = 30111312299 is a prime.

It is a super-2 number, since 2×30111312303² (a number of 22 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 (30111312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85551 + ... + 259887.

It is an arithmetic number, because the mean of its divisors is an integer number (2788536310).

Almost surely, 2^30111312303 is an apocalyptic number.

30111312303 is a deficient number, since it is larger than the sum of its proper divisors (14505268657).

30111312303 is a wasteful number, since it uses less digits than its factorization.

30111312303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180743 (or 180737 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30111312303 its reverse (30321311103), we get a palindrome (60432623406).

The spelling of 30111312303 in words is "thirty billion, one hundred eleven million, three hundred twelve thousand, three hundred three".