31031113023013 has 8 divisors (see below), whose sum is σ = 33175467494208. Its totient is φ = 28922202427584.

The previous prime is 31031113023011. The next prime is 31031113023017. The reversal of 31031113023013 is 31032031113013.

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

It is not a de Polignac number, because 31031113023013 - 2¹ = 31031113023011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031113023011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8860967131 + ... + 8860970632.

It is an arithmetic number, because the mean of its divisors is an integer number (4146933436776).

Almost surely, 2^{31031113023013} is an apocalyptic number.

It is an amenable number.

31031113023013 is a deficient number, since it is larger than the sum of its proper divisors (2144354471195).

31031113023013 is a wasteful number, since it uses less digits than its factorization.

31031113023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17721937883.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31031113023013 its reverse (31032031113013), we get a palindrome (62063144136026).

Subtracting 31031113023013 from its reverse (31032031113013), we obtain a square (918090000 = 30300²).

The spelling of 31031113023013 in words is "thirty-one trillion, thirty-one billion, one hundred thirteen million, twenty-three thousand, thirteen".