2321001901 has 2 divisors, whose sum is σ = 2321001902. Its totient is φ = 2321001900.

The previous prime is 2321001883. The next prime is 2321001913. The reversal of 2321001901 is 1091001232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1359691876 + 961310025 = 36874^2 + 31005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321001901 is a prime.

It is a super-2 number, since 2×2321001901² = 10774099648891227602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321001941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160500950 + 1160500951.

It is an arithmetic number, because the mean of its divisors is an integer number (1160500951).

Almost surely, 2^2321001901 is an apocalyptic number.

It is an amenable number.

2321001901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321001901 is an equidigital number, since it uses as much as digits as its factorization.

2321001901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2321001901 is about 48176.7776112102. Note that the first 3 decimals coincide. The cubic root of 2321001901 is about 1324.0117279517.

The spelling of 2321001901 in words is "two billion, three hundred twenty-one million, one thousand, nine hundred one".