243423001001 has 16 divisors (see below), whose sum is σ = 252267575808. Its totient is φ = 234641145600.

The previous prime is 243423000971. The next prime is 243423001009. The reversal of 243423001001 is 100100324342.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243423001001 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 (243423001009) 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, 30359345 + ... + 30367361.

It is an arithmetic number, because the mean of its divisors is an integer number (15766723488).

Almost surely, 2^243423001001 is an apocalyptic number.

It is an amenable number.

243423001001 is a deficient number, since it is larger than the sum of its proper divisors (8844574807).

243423001001 is a wasteful number, since it uses less digits than its factorization.

243423001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 243423001001 its reverse (100100324342), we get a palindrome (343523325343).

The spelling of 243423001001 in words is "two hundred forty-three billion, four hundred twenty-three million, one thousand, one".