242711123 has 4 divisors (see below), whose sum is σ = 243607008. Its totient is φ = 241815240.

The previous prime is 242711101. The next prime is 242711129. The reversal of 242711123 is 321117242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321117242 = 2 ⋅160558621.

It is a cyclic number.

It is not a de Polignac number, because 242711123 - 2¹² = 242707027 is a prime.

It is a super-2 number, since 2×242711123² = 117817378455842258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242711129) 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, 447536 + ... + 448077.

It is an arithmetic number, because the mean of its divisors is an integer number (60901752).

Almost surely, 2^242711123 is an apocalyptic number.

242711123 is a deficient number, since it is larger than the sum of its proper divisors (895885).

242711123 is an equidigital number, since it uses as much as digits as its factorization.

242711123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895884.

The product of its digits is 672, while the sum is 23.

The square root of 242711123 is about 15579.1887786239. The cubic root of 242711123 is about 623.7777696963. Note that the first 4 decimals are identical.

Adding to 242711123 its reverse (321117242), we get a palindrome (563828365).

The spelling of 242711123 in words is "two hundred forty-two million, seven hundred eleven thousand, one hundred twenty-three".