30311303013 has 12 divisors (see below), whose sum is σ = 43787891628. Its totient is φ = 20205274560.

The previous prime is 30311302949. The next prime is 30311303047. The reversal of 30311303013 is 31030311303.

It can be written as a sum of positive squares in 2 ways, for example, as 19694473569 + 10616829444 = 140337^2 + 103038^2 .

It is not a de Polignac number, because 30311303013 - 2⁶ = 30311302949 is a prime.

It is a super-3 number, since 3×30311303013³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311303053) 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 11 ways as a sum of consecutive naturals, for example, 101370 + ... + 266267.

It is an arithmetic number, because the mean of its divisors is an integer number (3648990969).

Almost surely, 2^30311303013 is an apocalyptic number.

It is an amenable number.

30311303013 is a deficient number, since it is larger than the sum of its proper divisors (13476588615).

30311303013 is a wasteful number, since it uses less digits than its factorization.

30311303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376804 (or 376801 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 30311303013 its reverse (31030311303), we get a palindrome (61341614316).

The spelling of 30311303013 in words is "thirty billion, three hundred eleven million, three hundred three thousand, thirteen".