242403303304243 has 4 divisors (see below), whose sum is σ = 242504600132088. Its totient is φ = 242302006476400.

The previous prime is 242403303304223. The next prime is 242403303304249. The reversal of 242403303304243 is 342403303304242.

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 242403303304243 - 2⁹ = 242403303303731 is a prime.

It is a super-2 number, since 2×242403303304243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242403303304249) 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, 50648410333 + ... + 50648415118.

It is an arithmetic number, because the mean of its divisors is an integer number (60626150033022).

Almost surely, 2^{242403303304243} is an apocalyptic number.

242403303304243 is a deficient number, since it is larger than the sum of its proper divisors (101296827845).

242403303304243 is a wasteful number, since it uses less digits than its factorization.

242403303304243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101296827844.

The product of its (nonzero) digits is 497664, while the sum is 37.

Adding to 242403303304243 its reverse (342403303304242), we get a palindrome (584806606608485).

Subtracting 242403303304243 from its reverse (342403303304242), we obtain a palindrome (99999999999999).

The spelling of 242403303304243 in words is "two hundred forty-two trillion, four hundred three billion, three hundred three million, three hundred four thousand, two hundred forty-three".