31424024113 has 4 divisors (see below), whose sum is σ = 32273322100. Its totient is φ = 30574726128.

The previous prime is 31424024087. The next prime is 31424024129. The reversal of 31424024113 is 31142042413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18303925264 + 13120098849 = 135292^2 + 114543^2 .

It is a cyclic number.

It is not a de Polignac number, because 31424024113 - 2¹⁷ = 31423893041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31424024713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424648938 + ... + 424649011.

It is an arithmetic number, because the mean of its divisors is an integer number (8068330525).

Almost surely, 2^31424024113 is an apocalyptic number.

It is an amenable number.

31424024113 is a deficient number, since it is larger than the sum of its proper divisors (849297987).

31424024113 is an equidigital number, since it uses as much as digits as its factorization.

31424024113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849297986.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31424024113 its reverse (31142042413), we get a palindrome (62566066526).

The spelling of 31424024113 in words is "thirty-one billion, four hundred twenty-four million, twenty-four thousand, one hundred thirteen".