240422120135243 has 4 divisors (see below), whose sum is σ = 240501284484720. Its totient is φ = 240342955785768.

The previous prime is 240422120135207. The next prime is 240422120135261. The reversal of 240422120135243 is 342531021224042.

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 240422120135243 - 2³⁶ = 240353400658507 is a prime.

It is a super-2 number, since 2×240422120135243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240422120134243) 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, 39582170183 + ... + 39582176256.

It is an arithmetic number, because the mean of its divisors is an integer number (60125321121180).

Almost surely, 2^{240422120135243} is an apocalyptic number.

240422120135243 is a deficient number, since it is larger than the sum of its proper divisors (79164349477).

240422120135243 is an equidigital number, since it uses as much as digits as its factorization.

240422120135243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79164349476.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 240422120135243 its reverse (342531021224042), we get a palindrome (582953141359285).

The spelling of 240422120135243 in words is "two hundred forty trillion, four hundred twenty-two billion, one hundred twenty million, one hundred thirty-five thousand, two hundred forty-three".