40555402000121 has 4 divisors (see below), whose sum is σ = 40555453050192. Its totient is φ = 40555350950052.

The previous prime is 40555402000037. The next prime is 40555402000153. The reversal of 40555402000121 is 12100020455504.

40555402000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40555402000121 - 2²² = 40555397805817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40555402000721) 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 3 ways as a sum of consecutive naturals, for example, 24314255 + ... + 25928628.

It is an arithmetic number, because the mean of its divisors is an integer number (10138863262548).

Almost surely, 2^{40555402000121} is an apocalyptic number.

It is an amenable number.

40555402000121 is a deficient number, since it is larger than the sum of its proper divisors (51050071).

40555402000121 is an equidigital number, since it uses as much as digits as its factorization.

40555402000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050070.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 40555402000121 its reverse (12100020455504), we get a palindrome (52655422455625).

The spelling of 40555402000121 in words is "forty trillion, five hundred fifty-five billion, four hundred two million, one hundred twenty-one", and thus it is an aban number.