2031240247 has 2 divisors, whose sum is σ = 2031240248. Its totient is φ = 2031240246.

The previous prime is 2031240217. The next prime is 2031240271. The reversal of 2031240247 is 7420421302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2031240247 - 2⁷ = 2031240119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031240217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015620123 + 1015620124.

It is an arithmetic number, because the mean of its divisors is an integer number (1015620124).

Almost surely, 2^2031240247 is an apocalyptic number.

2031240247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031240247 is an equidigital number, since it uses as much as digits as its factorization.

2031240247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2031240247 is about 45069.2827433497. The cubic root of 2031240247 is about 1266.4472278297.

Adding to 2031240247 its reverse (7420421302), we get a palindrome (9451661549).

The spelling of 2031240247 in words is "two billion, thirty-one million, two hundred forty thousand, two hundred forty-seven".