242886311 has 4 divisors (see below), whose sum is σ = 242947824. Its totient is φ = 242824800.

The previous prime is 242886289. The next prime is 242886313. The reversal of 242886311 is 113688242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113688242 = 2 ⋅56844121.

It is a cyclic number.

It is not a de Polignac number, because 242886311 - 2⁶ = 242886247 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 (242886313) 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, 24395 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (60736956).

Almost surely, 2^242886311 is an apocalyptic number.

242886311 is a deficient number, since it is larger than the sum of its proper divisors (61513).

242886311 is an equidigital number, since it uses as much as digits as its factorization.

242886311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61512.

The product of its digits is 18432, while the sum is 35.

The square root of 242886311 is about 15584.8102651267. The cubic root of 242886311 is about 623.9278137718.

The spelling of 242886311 in words is "two hundred forty-two million, eight hundred eighty-six thousand, three hundred eleven".