40245243303021 has 16 divisors (see below), whose sum is σ = 58432295179200. Its totient is φ = 24541563973248.

The previous prime is 40245243303011. The next prime is 40245243303071. The reversal of 40245243303021 is 12030334254204.

40245243303021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40245243303021 - 2¹⁰ = 40245243301997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245243303011) 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 in 15 ways as a sum of consecutive naturals, for example, 12173393176 + ... + 12173396481.

It is an arithmetic number, because the mean of its divisors is an integer number (3652018448700).

Almost surely, 2^{40245243303021} is an apocalyptic number.

It is an amenable number.

40245243303021 is a deficient number, since it is larger than the sum of its proper divisors (18187051876179).

40245243303021 is a wasteful number, since it uses less digits than its factorization.

40245243303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24346789708.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 40245243303021 its reverse (12030334254204), we get a palindrome (52275577557225).

The spelling of 40245243303021 in words is "forty trillion, two hundred forty-five billion, two hundred forty-three million, three hundred three thousand, twenty-one".