31240341113 has 4 divisors (see below), whose sum is σ = 31769838480. Its totient is φ = 30710843748.

The previous prime is 31240341073. The next prime is 31240341151. The reversal of 31240341113 is 31114304213.

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 a cyclic number.

It is not a de Polignac number, because 31240341113 - 2¹⁴ = 31240324729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31240341163) 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, 264748595 + ... + 264748712.

It is an arithmetic number, because the mean of its divisors is an integer number (7942459620).

Almost surely, 2^31240341113 is an apocalyptic number.

It is an amenable number.

31240341113 is a deficient number, since it is larger than the sum of its proper divisors (529497367).

31240341113 is an equidigital number, since it uses as much as digits as its factorization.

31240341113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529497366.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31240341113 its reverse (31114304213), we get a palindrome (62354645326).

The spelling of 31240341113 in words is "thirty-one billion, two hundred forty million, three hundred forty-one thousand, one hundred thirteen".