2321233661 has 2 divisors, whose sum is σ = 2321233662. Its totient is φ = 2321233660.

The previous prime is 2321233627. The next prime is 2321233679. The reversal of 2321233661 is 1663321232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2314572100 + 6661561 = 48110^2 + 2581^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321233661 - 2¹⁰ = 2321232637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2324233661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160616830 + 1160616831.

It is an arithmetic number, because the mean of its divisors is an integer number (1160616831).

Almost surely, 2^2321233661 is an apocalyptic number.

It is an amenable number.

2321233661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321233661 is an equidigital number, since it uses as much as digits as its factorization.

2321233661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 2321233661 is about 48179.1828594052. The cubic root of 2321233661 is about 1324.0557955223.

Adding to 2321233661 its reverse (1663321232), we get a palindrome (3984554893).

The spelling of 2321233661 in words is "two billion, three hundred twenty-one million, two hundred thirty-three thousand, six hundred sixty-one".