403044413081 has 2 divisors, whose sum is σ = 403044413082. Its totient is φ = 403044413080.

The previous prime is 403044413077. The next prime is 403044413153. The reversal of 403044413081 is 180314440304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400361173081 + 2683240000 = 632741^2 + 51800^2 .

It is a cyclic number.

It is not a de Polignac number, because 403044413081 - 2² = 403044413077 is a prime.

It is a super-2 number, since 2×403044413081² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (403044413041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201522206540 + 201522206541.

It is an arithmetic number, because the mean of its divisors is an integer number (201522206541).

Almost surely, 2^403044413081 is an apocalyptic number.

It is an amenable number.

403044413081 is a deficient number, since it is larger than the sum of its proper divisors (1).

403044413081 is an equidigital number, since it uses as much as digits as its factorization.

403044413081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 403044413081 its reverse (180314440304), we get a palindrome (583358853385).

The spelling of 403044413081 in words is "four hundred three billion, forty-four million, four hundred thirteen thousand, eighty-one".