40120452041 has 4 divisors (see below), whose sum is σ = 42232054800. Its totient is φ = 38008849284.

The previous prime is 40120452011. The next prime is 40120452077. The reversal of 40120452041 is 14025402104.

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 40120452041 - 2⁶ = 40120451977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40120451998 and 40120452016.

It is not an unprimeable number, because it can be changed into a prime (40120452011) 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 3 ways as a sum of consecutive naturals, for example, 1055801351 + ... + 1055801388.

It is an arithmetic number, because the mean of its divisors is an integer number (10558013700).

Almost surely, 2^40120452041 is an apocalyptic number.

It is an amenable number.

40120452041 is a deficient number, since it is larger than the sum of its proper divisors (2111602759).

40120452041 is a wasteful number, since it uses less digits than its factorization.

40120452041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111602758.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 40120452041 its reverse (14025402104), we get a palindrome (54145854145).

The spelling of 40120452041 in words is "forty billion, one hundred twenty million, four hundred fifty-two thousand, forty-one".