242403213243 has 16 divisors (see below), whose sum is σ = 339490146816. Its totient is φ = 153552273600.

The previous prime is 242403213233. The next prime is 242403213259. The reversal of 242403213243 is 342312304242.

It is not a de Polignac number, because 242403213243 - 2¹⁴ = 242403196859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242403213243.

It is not an unprimeable number, because it can be changed into a prime (242403213233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11622330 + ... + 11643167.

It is an arithmetic number, because the mean of its divisors is an integer number (21218134176).

Almost surely, 2^242403213243 is an apocalyptic number.

242403213243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242403213243 is a deficient number, since it is larger than the sum of its proper divisors (97086933573).

242403213243 is a wasteful number, since it uses less digits than its factorization.

242403213243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23265674.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 242403213243 its reverse (342312304242), we get a palindrome (584715517485).

Subtracting 242403213243 from its reverse (342312304242), we obtain a palindrome (99909090999).

The spelling of 242403213243 in words is "two hundred forty-two billion, four hundred three million, two hundred thirteen thousand, two hundred forty-three".