2031320273 has 2 divisors, whose sum is σ = 2031320274. Its totient is φ = 2031320272.

The previous prime is 2031320251. The next prime is 2031320309. The reversal of 2031320273 is 3720231302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1143995329 + 887324944 = 33823^2 + 29788^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031320273 - 2⁶ = 2031320209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031320243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015660136 + 1015660137.

It is an arithmetic number, because the mean of its divisors is an integer number (1015660137).

Almost surely, 2^2031320273 is an apocalyptic number.

It is an amenable number.

2031320273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031320273 is an equidigital number, since it uses as much as digits as its factorization.

2031320273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 2031320273 is about 45070.1705454949. The cubic root of 2031320273 is about 1266.4638592736.

Adding to 2031320273 its reverse (3720231302), we get a palindrome (5751551575).

The spelling of 2031320273 in words is "two billion, thirty-one million, three hundred twenty thousand, two hundred seventy-three".