23144440005401 has 24 divisors (see below), whose sum is σ = 27498507530760. Its totient is φ = 19349706942720.

The previous prime is 23144440005383. The next prime is 23144440005437. The reversal of 23144440005401 is 10450004444132.

It can be written as a sum of positive squares in 4 ways, for example, as 28729911001 + 23115710094400 = 169499^2 + 4807880^2 .

It is not a de Polignac number, because 23144440005401 - 2³⁴ = 23127260136217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144440005481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26925500 + ... + 27771773.

It is an arithmetic number, because the mean of its divisors is an integer number (1145771147115).

Almost surely, 2^{23144440005401} is an apocalyptic number.

It is an amenable number.

23144440005401 is a deficient number, since it is larger than the sum of its proper divisors (4354067525359).

23144440005401 is a wasteful number, since it uses less digits than its factorization.

23144440005401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54697577 (or 54697566 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 23144440005401 its reverse (10450004444132), we get a palindrome (33594444449533).

The spelling of 23144440005401 in words is "twenty-three trillion, one hundred forty-four billion, four hundred forty million, five thousand, four hundred one".