2031113311 has 4 divisors (see below), whose sum is σ = 2034760392. Its totient is φ = 2027466232.

The previous prime is 2031113297. The next prime is 2031113323. The reversal of 2031113311 is 1133111302.

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

It is a cyclic number.

It is not a de Polignac number, because 2031113311 - 2¹³ = 2031105119 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 (2031113111) 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, 1822705 + ... + 1823818.

It is an arithmetic number, because the mean of its divisors is an integer number (508690098).

Almost surely, 2^2031113311 is an apocalyptic number.

2031113311 is a deficient number, since it is larger than the sum of its proper divisors (3647081).

2031113311 is an equidigital number, since it uses as much as digits as its factorization.

2031113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647080.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2031113311 is about 45067.8744894853. The cubic root of 2031113311 is about 1266.4208463953.

Adding to 2031113311 its reverse (1133111302), we get a palindrome (3164224613).

The spelling of 2031113311 in words is "two billion, thirty-one million, one hundred thirteen thousand, three hundred eleven".