44340400121 has 2 divisors, whose sum is σ = 44340400122. Its totient is φ = 44340400120.

The previous prime is 44340400103. The next prime is 44340400133. The reversal of 44340400121 is 12100404344.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36171855721 + 8168544400 = 190189^2 + 90380^2 .

It is a cyclic number.

It is not a de Polignac number, because 44340400121 - 2⁶ = 44340400057 is a prime.

It is not a weakly prime, because it can be changed into another prime (44340400721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22170200060 + 22170200061.

It is an arithmetic number, because the mean of its divisors is an integer number (22170200061).

Almost surely, 2^44340400121 is an apocalyptic number.

It is an amenable number.

44340400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

44340400121 is an equidigital number, since it uses as much as digits as its factorization.

44340400121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 44340400121 its reverse (12100404344), we get a palindrome (56440804465).

The spelling of 44340400121 in words is "forty-four billion, three hundred forty million, four hundred thousand, one hundred twenty-one".