31000113110113 has 4 divisors (see below), whose sum is σ = 35428700697280. Its totient is φ = 26571525522948.

The previous prime is 31000113109961. The next prime is 31000113110123. The reversal of 31000113110113 is 31101131100013.

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 31000113110113 - 2⁹ = 31000113109601 is a prime.

It is a super-2 number, since 2×31000113110113² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31000113110123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214293793573 + ... + 2214293793586.

It is an arithmetic number, because the mean of its divisors is an integer number (8857175174320).

Almost surely, 2^{31000113110113} is an apocalyptic number.

It is an amenable number.

31000113110113 is a deficient number, since it is larger than the sum of its proper divisors (4428587587167).

31000113110113 is an equidigital number, since it uses as much as digits as its factorization.

31000113110113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428587587166.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 31000113110113 its reverse (31101131100013), we get a palindrome (62101244210126).

The spelling of 31000113110113 in words is "thirty-one trillion, one hundred thirteen million, one hundred ten thousand, one hundred thirteen".