43031301121 has 2 divisors, whose sum is σ = 43031301122. Its totient is φ = 43031301120.

The previous prime is 43031301107. The next prime is 43031301127. The reversal of 43031301121 is 12110313034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28471500225 + 14559800896 = 168735^2 + 120664^2 .

It is a cyclic number.

It is not a de Polignac number, because 43031301121 - 2²⁷ = 42897083393 is a prime.

It is not a weakly prime, because it can be changed into another prime (43031301127) 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, 21515650560 + 21515650561.

It is an arithmetic number, because the mean of its divisors is an integer number (21515650561).

Almost surely, 2^43031301121 is an apocalyptic number.

It is an amenable number.

43031301121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43031301121 is an equidigital number, since it uses as much as digits as its factorization.

43031301121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 43031301121 its reverse (12110313034), we get a palindrome (55141614155).

The spelling of 43031301121 in words is "forty-three billion, thirty-one million, three hundred one thousand, one hundred twenty-one".