43023415081 has 2 divisors, whose sum is σ = 43023415082. Its totient is φ = 43023415080.

The previous prime is 43023415079. The next prime is 43023415133. The reversal of 43023415081 is 18051432034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41233363600 + 1790051481 = 203060^2 + 42309^2 .

It is a cyclic number.

It is not a de Polignac number, because 43023415081 - 2¹ = 43023415079 is a prime.

It is a super-2 number, since 2×43023415081² (a number of 22 digits) contains 22 as substring.

Together with 43023415079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43023415021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21511707540 + 21511707541.

It is an arithmetic number, because the mean of its divisors is an integer number (21511707541).

Almost surely, 2^43023415081 is an apocalyptic number.

It is an amenable number.

43023415081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43023415081 is an equidigital number, since it uses as much as digits as its factorization.

43023415081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 43023415081 in words is "forty-three billion, twenty-three million, four hundred fifteen thousand, eighty-one".