240305142534121 has 12 divisors (see below), whose sum is σ = 279551971246032. Its totient is φ = 205966009892328.

The previous prime is 240305142534091. The next prime is 240305142534181. The reversal of 240305142534121 is 121435241503042.

It is not a de Polignac number, because 240305142534121 - 2⁵ = 240305142534089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240305142534181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115945255 + ... + 117999628.

It is an arithmetic number, because the mean of its divisors is an integer number (23295997603836).

Almost surely, 2^{240305142534121} is an apocalyptic number.

It is an amenable number.

240305142534121 is a deficient number, since it is larger than the sum of its proper divisors (39246828711911).

240305142534121 is a wasteful number, since it uses less digits than its factorization.

240305142534121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233965860 (or 233965853 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 240305142534121 in words is "two hundred forty trillion, three hundred five billion, one hundred forty-two million, five hundred thirty-four thousand, one hundred twenty-one".