2031112313 has 4 divisors (see below), whose sum is σ = 2119421568. Its totient is φ = 1942803060.

The previous prime is 2031112301. The next prime is 2031112319. The reversal of 2031112313 is 3132111302.

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 2031112313 - 2⁶ = 2031112249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2031112291 and 2031112300.

It is not an unprimeable number, because it can be changed into a prime (2031112319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44154593 + ... + 44154638.

It is an arithmetic number, because the mean of its divisors is an integer number (529855392).

Almost surely, 2^2031112313 is an apocalyptic number.

2031112313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2031112313 is a deficient number, since it is larger than the sum of its proper divisors (88309255).

2031112313 is an equidigital number, since it uses as much as digits as its factorization.

2031112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88309254.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2031112313 is about 45067.8634172955. The cubic root of 2031112313 is about 1266.4206389740.

Adding to 2031112313 its reverse (3132111302), we get a palindrome (5163223615).

The spelling of 2031112313 in words is "two billion, thirty-one million, one hundred twelve thousand, three hundred thirteen".