2031212223 has 6 divisors (see below), whose sum is σ = 2933973224. Its totient is φ = 1354141476.

The previous prime is 2031212129. The next prime is 2031212257. The reversal of 2031212223 is 3222121302.

It is not a de Polignac number, because 2031212223 - 2²¹ = 2029115071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031212196 and 2031212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031212123) 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 5 ways as a sum of consecutive naturals, for example, 112845115 + ... + 112845132.

Almost surely, 2^2031212223 is an apocalyptic number.

2031212223 is a deficient number, since it is larger than the sum of its proper divisors (902761001).

2031212223 is a wasteful number, since it uses less digits than its factorization.

2031212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225690253 (or 225690250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2031212223 is about 45068.9718431650. The cubic root of 2031212223 is about 1266.4414036244.

Adding to 2031212223 its reverse (3222121302), we get a palindrome (5253333525).

The spelling of 2031212223 in words is "two billion, thirty-one million, two hundred twelve thousand, two hundred twenty-three".