43120052281 has 2 divisors, whose sum is σ = 43120052282. Its totient is φ = 43120052280.

The previous prime is 43120052257. The next prime is 43120052321. The reversal of 43120052281 is 18225002134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43073266681 + 46785600 = 207541^2 + 6840^2 .

It is a cyclic number.

It is not a de Polignac number, because 43120052281 - 2⁹ = 43120051769 is a prime.

It is a super-2 number, since 2×43120052281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43120052581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21560026140 + 21560026141.

It is an arithmetic number, because the mean of its divisors is an integer number (21560026141).

Almost surely, 2^43120052281 is an apocalyptic number.

It is an amenable number.

43120052281 is a deficient number, since it is larger than the sum of its proper divisors (1).

43120052281 is an equidigital number, since it uses as much as digits as its factorization.

43120052281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 43120052281 in words is "forty-three billion, one hundred twenty million, fifty-two thousand, two hundred eighty-one".