2143423001 has 2 divisors, whose sum is σ = 2143423002. Its totient is φ = 2143423000.

The previous prime is 2143422997. The next prime is 2143423013. The reversal of 2143423001 is 1003243412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138137600 + 5285401 = 46240^2 + 2299^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143423001 - 2² = 2143422997 is a prime.

It is a super-3 number, since 3×2143423001³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2143423081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071711500 + 1071711501.

It is an arithmetic number, because the mean of its divisors is an integer number (1071711501).

Almost surely, 2^2143423001 is an apocalyptic number.

It is an amenable number.

2143423001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143423001 is an equidigital number, since it uses as much as digits as its factorization.

2143423001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2143423001 is about 46297.1165516817. The cubic root of 2143423001 is about 1289.3454606671.

Adding to 2143423001 its reverse (1003243412), we get a palindrome (3146666413).

The spelling of 2143423001 in words is "two billion, one hundred forty-three million, four hundred twenty-three thousand, one".