41254431021 has 12 divisors (see below), whose sum is σ = 59602611900. Its totient is φ = 27497010240.

The previous prime is 41254431011. The next prime is 41254431041. The reversal of 41254431021 is 12013445214.

41254431021 is a `hidden beast` number, since 4 + 12 + 544 + 3 + 102 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37384222500 + 3870208521 = 193350^2 + 62211^2 .

It is not a de Polignac number, because 41254431021 - 2⁶ = 41254430957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41254431011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451150 + ... + 534831.

It is an arithmetic number, because the mean of its divisors is an integer number (4966884325).

Almost surely, 2^41254431021 is an apocalyptic number.

It is an amenable number.

41254431021 is a deficient number, since it is larger than the sum of its proper divisors (18348180879).

41254431021 is a wasteful number, since it uses less digits than its factorization.

41254431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990636 (or 990633 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 41254431021 its reverse (12013445214), we get a palindrome (53267876235).

The spelling of 41254431021 in words is "forty-one billion, two hundred fifty-four million, four hundred thirty-one thousand, twenty-one".