242320003 has 4 divisors (see below), whose sum is σ = 243387720. Its totient is φ = 241252288.

The previous prime is 242319991. The next prime is 242320031. The reversal of 242320003 is 300023242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242320003 - 2¹⁷ = 242188931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242320063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533518 + ... + 533971.

It is an arithmetic number, because the mean of its divisors is an integer number (60846930).

Almost surely, 2^242320003 is an apocalyptic number.

242320003 is a deficient number, since it is larger than the sum of its proper divisors (1067717).

242320003 is a wasteful number, since it uses less digits than its factorization.

242320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067716.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 242320003 is about 15566.6310741920. The cubic root of 242320003 is about 623.4425246166.

Adding to 242320003 its reverse (300023242), we get a palindrome (542343245).

The spelling of 242320003 in words is "two hundred forty-two million, three hundred twenty thousand, three".