2123443601 has 2 divisors, whose sum is σ = 2123443602. Its totient is φ = 2123443600.

The previous prime is 2123443561. The next prime is 2123443603. The reversal of 2123443601 is 1063443212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1926771025 + 196672576 = 43895^2 + 14024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123443601 - 2¹⁴ = 2123427217 is a prime.

Together with 2123443603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2123443603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061721800 + 1061721801.

It is an arithmetic number, because the mean of its divisors is an integer number (1061721801).

Almost surely, 2^2123443601 is an apocalyptic number.

It is an amenable number.

2123443601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123443601 is an equidigital number, since it uses as much as digits as its factorization.

2123443601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2123443601 is about 46080.8376768478. The cubic root of 2123443601 is about 1285.3268410129.

Adding to 2123443601 its reverse (1063443212), we get a palindrome (3186886813).

The spelling of 2123443601 in words is "two billion, one hundred twenty-three million, four hundred forty-three thousand, six hundred one".