242387123 has 16 divisors (see below), whose sum is σ = 278899200. Its totient is φ = 208334880.

The previous prime is 242387077. The next prime is 242387137. The reversal of 242387123 is 321783242.

242387123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242387123 - 2⁶ = 242387059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242387123.

It is not an unprimeable number, because it can be changed into a prime (242387323) 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, 149465 + ... + 151077.

It is an arithmetic number, because the mean of its divisors is an integer number (17431200).

Almost surely, 2^242387123 is an apocalyptic number.

242387123 is a deficient number, since it is larger than the sum of its proper divisors (36512077).

242387123 is a wasteful number, since it uses less digits than its factorization.

242387123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362.

The product of its digits is 16128, while the sum is 32.

The square root of 242387123 is about 15568.7868185032. The cubic root of 242387123 is about 623.5000815644.

The spelling of 242387123 in words is "two hundred forty-two million, three hundred eighty-seven thousand, one hundred twenty-three".