40041140121 has 24 divisors (see below), whose sum is σ = 58219898880. Its totient is φ = 26517722976.

The previous prime is 40041140039. The next prime is 40041140129. The reversal of 40041140121 is 12104114004.

40041140121 is a `hidden beast` number, since 400 + 4 + 1 + 140 + 121 = 666.

40041140121 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 40041140121 - 2¹¹ = 40041138073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40041140094 and 40041140103.

It is not an unprimeable number, because it can be changed into a prime (40041140129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1981350 + ... + 2001456.

It is an arithmetic number, because the mean of its divisors is an integer number (2425829120).

Almost surely, 2^40041140121 is an apocalyptic number.

It is an amenable number.

40041140121 is a deficient number, since it is larger than the sum of its proper divisors (18178758759).

40041140121 is a wasteful number, since it uses less digits than its factorization.

40041140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21565 (or 21562 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 40041140121 its reverse (12104114004), we get a palindrome (52145254125).

The spelling of 40041140121 in words is "forty billion, forty-one million, one hundred forty thousand, one hundred twenty-one".