2191423001 has 8 divisors (see below), whose sum is σ = 2208192000. Its totient is φ = 2174714640.

The previous prime is 2191422991. The next prime is 2191423009. The reversal of 2191423001 is 1003241912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2191423001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2191423009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58760 + ... + 88518.

It is an arithmetic number, because the mean of its divisors is an integer number (276024000).

Almost surely, 2^2191423001 is an apocalyptic number.

It is an amenable number.

2191423001 is a deficient number, since it is larger than the sum of its proper divisors (16768999).

2191423001 is a wasteful number, since it uses less digits than its factorization.

2191423001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30319.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2191423001 is about 46812.6371933904. The cubic root of 2191423001 is about 1298.8990681135.

Adding to 2191423001 its reverse (1003241912), we get a palindrome (3194664913).

The spelling of 2191423001 in words is "two billion, one hundred ninety-one million, four hundred twenty-three thousand, one".