44121440023 has 2 divisors, whose sum is σ = 44121440024. Its totient is φ = 44121440022.

The previous prime is 44121439961. The next prime is 44121440047. The reversal of 44121440023 is 32004412144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44121440023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44121440023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44121410023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22060720011 + 22060720012.

It is an arithmetic number, because the mean of its divisors is an integer number (22060720012).

Almost surely, 2^44121440023 is an apocalyptic number.

44121440023 is a deficient number, since it is larger than the sum of its proper divisors (1).

44121440023 is an equidigital number, since it uses as much as digits as its factorization.

44121440023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 44121440023 its reverse (32004412144), we get a palindrome (76125852167).

The spelling of 44121440023 in words is "forty-four billion, one hundred twenty-one million, four hundred forty thousand, twenty-three".