3102231661 has 2 divisors, whose sum is σ = 3102231662. Its totient is φ = 3102231660.

The previous prime is 3102231653. The next prime is 3102231701. The reversal of 3102231661 is 1661322013.

3102231661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1917564100 + 1184667561 = 43790^2 + 34419^2 .

It is a cyclic number.

It is not a de Polignac number, because 3102231661 - 2³ = 3102231653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3102231611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551115830 + 1551115831.

It is an arithmetic number, because the mean of its divisors is an integer number (1551115831).

Almost surely, 2^3102231661 is an apocalyptic number.

It is an amenable number.

3102231661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3102231661 is an equidigital number, since it uses as much as digits as its factorization.

3102231661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3102231661 is about 55697.6809301788. The cubic root of 3102231661 is about 1458.4495426858.

Adding to 3102231661 its reverse (1661322013), we get a palindrome (4763553674).

The spelling of 3102231661 in words is "three billion, one hundred two million, two hundred thirty-one thousand, six hundred sixty-one".