2101242423 has 8 divisors (see below), whose sum is σ = 3201893248. Its totient is φ = 1200709944.

The previous prime is 2101242419. The next prime is 2101242431. The reversal of 2101242423 is 3242421012.

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

It is not a de Polignac number, because 2101242423 - 2² = 2101242419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 100059163 = 2101242423 / (2 + 1 + 0 + 1 + 2 + 4 + 2 + 4 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101242423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101242413) 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, 50029561 + ... + 50029602.

It is an arithmetic number, because the mean of its divisors is an integer number (400236656).

Almost surely, 2^2101242423 is an apocalyptic number.

2101242423 is a deficient number, since it is larger than the sum of its proper divisors (1100650825).

2101242423 is a wasteful number, since it uses less digits than its factorization.

2101242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100059173.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2101242423 is about 45839.3108914172. The cubic root of 2101242423 is about 1280.8316582170.

Adding to 2101242423 its reverse (3242421012), we get a palindrome (5343663435).

The spelling of 2101242423 in words is "two billion, one hundred one million, two hundred forty-two thousand, four hundred twenty-three".