2031223213 has 2 divisors, whose sum is σ = 2031223214. Its totient is φ = 2031223212.

The previous prime is 2031223163. The next prime is 2031223217. The reversal of 2031223213 is 3123221302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1238124969 + 793098244 = 35187^2 + 28162^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031223213 - 2²¹ = 2029126061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031223217) 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 as a sum of consecutive naturals, namely, 1015611606 + 1015611607.

It is an arithmetic number, because the mean of its divisors is an integer number (1015611607).

Almost surely, 2^2031223213 is an apocalyptic number.

It is an amenable number.

2031223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031223213 is an equidigital number, since it uses as much as digits as its factorization.

2031223213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2031223213 is about 45069.0937672370. The cubic root of 2031223213 is about 1266.4436876736.

Adding to 2031223213 its reverse (3123221302), we get a palindrome (5154444515).

The spelling of 2031223213 in words is "two billion, thirty-one million, two hundred twenty-three thousand, two hundred thirteen".