242312421503 has 4 divisors (see below), whose sum is σ = 242344358520. Its totient is φ = 242280484488.

The previous prime is 242312421391. The next prime is 242312421523. The reversal of 242312421503 is 305124213242.

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 242312421503 - 2²⁴ = 242295644287 is a prime.

It is a super-2 number, since 2×242312421503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242312421523) 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, 15957125 + ... + 15972302.

It is an arithmetic number, because the mean of its divisors is an integer number (60586089630).

Almost surely, 2^242312421503 is an apocalyptic number.

242312421503 is a deficient number, since it is larger than the sum of its proper divisors (31937017).

242312421503 is an equidigital number, since it uses as much as digits as its factorization.

242312421503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31937016.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 242312421503 its reverse (305124213242), we get a palindrome (547436634745).

The spelling of 242312421503 in words is "two hundred forty-two billion, three hundred twelve million, four hundred twenty-one thousand, five hundred three".