2031012223 has 4 divisors (see below), whose sum is σ = 2042358840. Its totient is φ = 2019665608.

The previous prime is 2031012209. The next prime is 2031012227. The reversal of 2031012223 is 3222101302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031012223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031012197 and 2031012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5673040 + ... + 5673397.

It is an arithmetic number, because the mean of its divisors is an integer number (510589710).

Almost surely, 2^2031012223 is an apocalyptic number.

2031012223 is a deficient number, since it is larger than the sum of its proper divisors (11346617).

2031012223 is a wasteful number, since it uses less digits than its factorization.

2031012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346616.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031012223 is about 45066.7529671264. The cubic root of 2031012223 is about 1266.3998362308.

Adding to 2031012223 its reverse (3222101302), we get a palindrome (5253113525).

The spelling of 2031012223 in words is "two billion, thirty-one million, twelve thousand, two hundred twenty-three".