242440021011 has 4 divisors (see below), whose sum is σ = 323253361352. Its totient is φ = 161626680672.

The previous prime is 242440021001. The next prime is 242440021013. The reversal of 242440021011 is 110120044242.

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

It is not a de Polignac number, because 242440021011 - 2³⁴ = 225260151827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242440021013) 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, 40406670166 + ... + 40406670171.

It is an arithmetic number, because the mean of its divisors is an integer number (80813340338).

Almost surely, 2^242440021011 is an apocalyptic number.

242440021011 is a deficient number, since it is larger than the sum of its proper divisors (80813340341).

242440021011 is an equidigital number, since it uses as much as digits as its factorization.

242440021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80813340340.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 242440021011 its reverse (110120044242), we get a palindrome (352560065253).

The spelling of 242440021011 in words is "two hundred forty-two billion, four hundred forty million, twenty-one thousand, eleven".