242115022511 has 4 divisors (see below), whose sum is σ = 242718801024. Its totient is φ = 241511244000.

The previous prime is 242115022493. The next prime is 242115022571. The reversal of 242115022511 is 115220511242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242115022511 - 2⁶ = 242115022447 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 (242115022571) 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, 301888655 + ... + 301889456.

It is an arithmetic number, because the mean of its divisors is an integer number (60679700256).

Almost surely, 2^242115022511 is an apocalyptic number.

242115022511 is a deficient number, since it is larger than the sum of its proper divisors (603778513).

242115022511 is an equidigital number, since it uses as much as digits as its factorization.

242115022511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603778512.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 242115022511 its reverse (115220511242), we get a palindrome (357335533753).

The spelling of 242115022511 in words is "two hundred forty-two billion, one hundred fifteen million, twenty-two thousand, five hundred eleven".