242125311 has 4 divisors (see below), whose sum is σ = 322833752. Its totient is φ = 161416872.

The previous prime is 242125309. The next prime is 242125313. The reversal of 242125311 is 113521242.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (242125309) and next prime (242125313).

It is not a de Polignac number, because 242125311 - 2¹ = 242125309 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 (242125313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40354216 + ... + 40354221.

It is an arithmetic number, because the mean of its divisors is an integer number (80708438).

Almost surely, 2^242125311 is an apocalyptic number.

242125311 is a deficient number, since it is larger than the sum of its proper divisors (80708441).

242125311 is an equidigital number, since it uses as much as digits as its factorization.

242125311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80708440.

The product of its digits is 480, while the sum is 21.

The square root of 242125311 is about 15560.3763129302. The cubic root of 242125311 is about 623.2755115864.

Adding to 242125311 its reverse (113521242), we get a palindrome (355646553).

The spelling of 242125311 in words is "two hundred forty-two million, one hundred twenty-five thousand, three hundred eleven".