31203304113 has 8 divisors (see below), whose sum is σ = 41605720576. Its totient is φ = 20801545200.

The previous prime is 31203304103. The next prime is 31203304117. The reversal of 31203304113 is 31140330213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31203304113 - 2¹² = 31203300017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31203304113.

It is not an unprimeable number, because it can be changed into a prime (31203304117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40273 + ... + 253038.

It is an arithmetic number, because the mean of its divisors is an integer number (5200715072).

Almost surely, 2^31203304113 is an apocalyptic number.

It is an amenable number.

31203304113 is a deficient number, since it is larger than the sum of its proper divisors (10402416463).

31203304113 is a wasteful number, since it uses less digits than its factorization.

31203304113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328775.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31203304113 its reverse (31140330213), we get a palindrome (62343634326).

The spelling of 31203304113 in words is "thirty-one billion, two hundred three million, three hundred four thousand, one hundred thirteen".