243425510321 has 16 divisors (see below), whose sum is σ = 283478963328. Its totient is φ = 204692467200.

The previous prime is 243425510311. The next prime is 243425510353. The reversal of 243425510321 is 123015524342.

It is a cyclic number.

It is not a de Polignac number, because 243425510321 - 2¹⁰ = 243425509297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243425510311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305566 + ... + 4361736.

It is an arithmetic number, because the mean of its divisors is an integer number (17717435208).

Almost surely, 2^243425510321 is an apocalyptic number.

It is an amenable number.

243425510321 is a deficient number, since it is larger than the sum of its proper divisors (40053453007).

243425510321 is a wasteful number, since it uses less digits than its factorization.

243425510321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67912.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 243425510321 in words is "two hundred forty-three billion, four hundred twenty-five million, five hundred ten thousand, three hundred twenty-one".