243402100401 has 8 divisors (see below), whose sum is σ = 325136017984. Its totient is φ = 161968124880.

The previous prime is 243402100399. The next prime is 243402100453. The reversal of 243402100401 is 104001204342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243402100401 - 2¹ = 243402100399 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243402100471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74983621 + ... + 74986866.

It is an arithmetic number, because the mean of its divisors is an integer number (40642002248).

Almost surely, 2^243402100401 is an apocalyptic number.

It is an amenable number.

243402100401 is a deficient number, since it is larger than the sum of its proper divisors (81733917583).

243402100401 is a wasteful number, since it uses less digits than its factorization.

243402100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149971031.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 243402100401 its reverse (104001204342), we get a palindrome (347403304743).

The spelling of 243402100401 in words is "two hundred forty-three billion, four hundred two million, one hundred thousand, four hundred one".