40424421133 has 2 divisors, whose sum is σ = 40424421134. Its totient is φ = 40424421132.

The previous prime is 40424421101. The next prime is 40424421139. The reversal of 40424421133 is 33112442404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30391994889 + 10032426244 = 174333^2 + 100162^2 .

It is a cyclic number.

It is not a de Polignac number, because 40424421133 - 2⁵ = 40424421101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40424421139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20212210566 + 20212210567.

It is an arithmetic number, because the mean of its divisors is an integer number (20212210567).

Almost surely, 2^40424421133 is an apocalyptic number.

It is an amenable number.

40424421133 is a deficient number, since it is larger than the sum of its proper divisors (1).

40424421133 is an equidigital number, since it uses as much as digits as its factorization.

40424421133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40424421133 its reverse (33112442404), we get a palindrome (73536863537).

The spelling of 40424421133 in words is "forty billion, four hundred twenty-four million, four hundred twenty-one thousand, one hundred thirty-three".