2321110921 has 2 divisors, whose sum is σ = 2321110922. Its totient is φ = 2321110920.

The previous prime is 2321110859. The next prime is 2321110931. The reversal of 2321110921 is 1290111232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234749321 + 1086361600 = 35139^2 + 32960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321110921 - 2¹⁷ = 2320979849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321110892 and 2321110901.

It is not a weakly prime, because it can be changed into another prime (2321110931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160555460 + 1160555461.

It is an arithmetic number, because the mean of its divisors is an integer number (1160555461).

Almost surely, 2^2321110921 is an apocalyptic number.

It is an amenable number.

2321110921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321110921 is an equidigital number, since it uses as much as digits as its factorization.

2321110921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 2321110921 is about 48177.9090559148. The cubic root of 2321110921 is about 1324.0324577206.

The spelling of 2321110921 in words is "two billion, three hundred twenty-one million, one hundred ten thousand, nine hundred twenty-one".