3240031261 has 2 divisors, whose sum is σ = 3240031262. Its totient is φ = 3240031260.

The previous prime is 3240031199. The next prime is 3240031279. The reversal of 3240031261 is 1621300423.

3240031261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2893364100 + 346667161 = 53790^2 + 18619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240031261 - 2³¹ = 1092547613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3240031961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620015630 + 1620015631.

It is an arithmetic number, because the mean of its divisors is an integer number (1620015631).

Almost surely, 2^3240031261 is an apocalyptic number.

It is an amenable number.

3240031261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240031261 is an equidigital number, since it uses as much as digits as its factorization.

3240031261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3240031261 is about 56921.2724822627. The cubic root of 3240031261 is about 1479.7320036111.

Adding to 3240031261 its reverse (1621300423), we get a palindrome (4861331684).

The spelling of 3240031261 in words is "three billion, two hundred forty million, thirty-one thousand, two hundred sixty-one".