243430202401 has 4 divisors (see below), whose sum is σ = 247063489072. Its totient is φ = 239796915732.

The previous prime is 243430202399. The next prime is 243430202429. The reversal of 243430202401 is 104202034342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243430202401 - 2¹ = 243430202399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243430206401) 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, 1816643235 + ... + 1816643368.

It is an arithmetic number, because the mean of its divisors is an integer number (61765872268).

Almost surely, 2^243430202401 is an apocalyptic number.

It is an amenable number.

243430202401 is a deficient number, since it is larger than the sum of its proper divisors (3633286671).

243430202401 is an equidigital number, since it uses as much as digits as its factorization.

243430202401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633286670.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 243430202401 its reverse (104202034342), we get a palindrome (347632236743).

The spelling of 243430202401 in words is "two hundred forty-three billion, four hundred thirty million, two hundred two thousand, four hundred one".