43799055121 has 2 divisors, whose sum is σ = 43799055122. Its totient is φ = 43799055120.

The previous prime is 43799055107. The next prime is 43799055133. The reversal of 43799055121 is 12155099734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24111878400 + 19687176721 = 155280^2 + 140311^2 .

It is a cyclic number.

It is not a de Polignac number, because 43799055121 - 2¹¹ = 43799053073 is a prime.

It is not a weakly prime, because it can be changed into another prime (43799055821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21899527560 + 21899527561.

It is an arithmetic number, because the mean of its divisors is an integer number (21899527561).

Almost surely, 2^43799055121 is an apocalyptic number.

It is an amenable number.

43799055121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43799055121 is an equidigital number, since it uses as much as digits as its factorization.

43799055121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 43799055121 in words is "forty-three billion, seven hundred ninety-nine million, fifty-five thousand, one hundred twenty-one".