23443444001 has 4 divisors (see below), whose sum is σ = 23578955412. Its totient is φ = 23307932592.

The previous prime is 23443443977. The next prime is 23443444021. The reversal of 23443444001 is 10044434432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14757390400 + 8686053601 = 121480^2 + 93199^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443444001 - 2¹⁴ = 23443427617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23443444021) 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, 67755446 + ... + 67755791.

It is an arithmetic number, because the mean of its divisors is an integer number (5894738853).

Almost surely, 2^23443444001 is an apocalyptic number.

It is an amenable number.

23443444001 is a deficient number, since it is larger than the sum of its proper divisors (135511411).

23443444001 is a wasteful number, since it uses less digits than its factorization.

23443444001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135511410.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 23443444001 its reverse (10044434432), we get a palindrome (33487878433).

The spelling of 23443444001 in words is "twenty-three billion, four hundred forty-three million, four hundred forty-four thousand, one".