43123425481 has 2 divisors, whose sum is σ = 43123425482. Its totient is φ = 43123425480.

The previous prime is 43123425467. The next prime is 43123425551. The reversal of 43123425481 is 18452432134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42154659856 + 968765625 = 205316^2 + 31125^2 .

It is a cyclic number.

It is not a de Polignac number, because 43123425481 - 2⁷ = 43123425353 is a prime.

It is a super-2 number, since 2×43123425481² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43123425481.

It is not a weakly prime, because it can be changed into another prime (43121425481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561712740 + 21561712741.

It is an arithmetic number, because the mean of its divisors is an integer number (21561712741).

Almost surely, 2^43123425481 is an apocalyptic number.

It is an amenable number.

43123425481 is a deficient number, since it is larger than the sum of its proper divisors (1).

43123425481 is an equidigital number, since it uses as much as digits as its factorization.

43123425481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 37.

The spelling of 43123425481 in words is "forty-three billion, one hundred twenty-three million, four hundred twenty-five thousand, four hundred eighty-one".