40103995081 has 2 divisors, whose sum is σ = 40103995082. Its totient is φ = 40103995080.

The previous prime is 40103995079. The next prime is 40103995111. The reversal of 40103995081 is 18059930104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34627255056 + 5476740025 = 186084^2 + 74005^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103995081 - 2¹ = 40103995079 is a prime.

It is a super-2 number, since 2×40103995081² (a number of 22 digits) contains 22 as substring.

Together with 40103995079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40103995681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051997540 + 20051997541.

It is an arithmetic number, because the mean of its divisors is an integer number (20051997541).

Almost surely, 2^40103995081 is an apocalyptic number.

It is an amenable number.

40103995081 is a deficient number, since it is larger than the sum of its proper divisors (1).

40103995081 is an equidigital number, since it uses as much as digits as its factorization.

40103995081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 40103995081 in words is "forty billion, one hundred three million, nine hundred ninety-five thousand, eighty-one".