31300303013 has 4 divisors (see below), whose sum is σ = 35771774880. Its totient is φ = 26828831148.

The previous prime is 31300302991. The next prime is 31300303051. The reversal of 31300303013 is 31030300313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31300303013 - 2⁶ = 31300302949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31300302982 and 31300303000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300303063) 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 3 ways as a sum of consecutive naturals, for example, 2235735923 + ... + 2235735936.

It is an arithmetic number, because the mean of its divisors is an integer number (8942943720).

Almost surely, 2^31300303013 is an apocalyptic number.

It is an amenable number.

31300303013 is a deficient number, since it is larger than the sum of its proper divisors (4471471867).

31300303013 is an equidigital number, since it uses as much as digits as its factorization.

31300303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471471866.

The product of its (nonzero) digits is 243, while the sum is 17.

Adding to 31300303013 its reverse (31030300313), we get a palindrome (62330603326).

The spelling of 31300303013 in words is "thirty-one billion, three hundred million, three hundred three thousand, thirteen".