242542311 has 16 divisors (see below), whose sum is σ = 353055360. Its totient is φ = 146884320.

The previous prime is 242542271. The next prime is 242542327. The reversal of 242542311 is 113245242.

It is not a de Polignac number, because 242542311 - 2¹³ = 242534119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242542361) 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, 70221 + ... + 73593.

It is an arithmetic number, because the mean of its divisors is an integer number (22065960).

Almost surely, 2^242542311 is an apocalyptic number.

242542311 is a deficient number, since it is larger than the sum of its proper divisors (110513049).

242542311 is a wasteful number, since it uses less digits than its factorization.

242542311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566.

The product of its digits is 1920, while the sum is 24.

The square root of 242542311 is about 15573.7699674806. The cubic root of 242542311 is about 623.6331181805.

Adding to 242542311 its reverse (113245242), we get a palindrome (355787553).

It can be divided in two parts, 24254 and 2311, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 242542311 in words is "two hundred forty-two million, five hundred forty-two thousand, three hundred eleven".