242403213245 has 12 divisors (see below), whose sum is σ = 306999307260. Its totient is φ = 183716118144.

The previous prime is 242403213233. The next prime is 242403213259. The reversal of 242403213245 is 542312304242.

It can be written as a sum of positive squares in 2 ways, for example, as 57512673124 + 184890540121 = 239818^2 + 429989^2 .

It is not a de Polignac number, because 242403213245 - 2³⁰ = 241329471421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67145900 + ... + 67149509.

It is an arithmetic number, because the mean of its divisors is an integer number (25583275605).

Almost surely, 2^242403213245 is an apocalyptic number.

It is an amenable number.

242403213245 is a deficient number, since it is larger than the sum of its proper divisors (64596094015).

242403213245 is a wasteful number, since it uses less digits than its factorization.

242403213245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134295452 (or 134295433 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 242403213245 its reverse (542312304242), we get a palindrome (784715517487).

The spelling of 242403213245 in words is "two hundred forty-two billion, four hundred three million, two hundred thirteen thousand, two hundred forty-five".