40120121041 has 16 divisors (see below), whose sum is σ = 53867576448. Its totient is φ = 28857628800.

The previous prime is 40120121033. The next prime is 40120121081. The reversal of 40120121041 is 14012102104.

It is a happy number.

It is not a de Polignac number, because 40120121041 - 2³ = 40120121033 is a prime.

It is a super-2 number, since 2×40120121041² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40120121011) 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 15 ways as a sum of consecutive naturals, for example, 20039020 + ... + 20041021.

It is an arithmetic number, because the mean of its divisors is an integer number (3366723528).

Almost surely, 2^40120121041 is an apocalyptic number.

It is an amenable number.

40120121041 is a deficient number, since it is larger than the sum of its proper divisors (13747455407).

40120121041 is a wasteful number, since it uses less digits than its factorization.

40120121041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40080072.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 40120121041 its reverse (14012102104), we get a palindrome (54132223145).

It can be divided in two parts, 40120 and 121041, that added together give a palindrome (161161).

The spelling of 40120121041 in words is "forty billion, one hundred twenty million, one hundred twenty-one thousand, forty-one".