242117603503 has 4 divisors (see below), whose sum is σ = 243567409680. Its totient is φ = 240667797328.

The previous prime is 242117603447. The next prime is 242117603599. The reversal of 242117603503 is 305306711242.

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 242117603503 - 2¹³ = 242117595311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242117603803) 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, 724902838 + ... + 724903171.

It is an arithmetic number, because the mean of its divisors is an integer number (60891852420).

Almost surely, 2^242117603503 is an apocalyptic number.

242117603503 is a deficient number, since it is larger than the sum of its proper divisors (1449806177).

242117603503 is a wasteful number, since it uses less digits than its factorization.

242117603503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449806176.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 242117603503 in words is "two hundred forty-two billion, one hundred seventeen million, six hundred three thousand, five hundred three".