40104423121 has 16 divisors (see below), whose sum is σ = 48640331520. Its totient is φ = 32279408640.

The previous prime is 40104423113. The next prime is 40104423131. The reversal of 40104423121 is 12132440104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40104423121 - 2³ = 40104423113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40104423092 and 40104423101.

It is not an unprimeable number, because it can be changed into a prime (40104423131) 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, 331600 + ... + 436081.

It is an arithmetic number, because the mean of its divisors is an integer number (3040020720).

Almost surely, 2^40104423121 is an apocalyptic number.

It is an amenable number.

40104423121 is a deficient number, since it is larger than the sum of its proper divisors (8535908399).

40104423121 is a wasteful number, since it uses less digits than its factorization.

40104423121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768144.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40104423121 its reverse (12132440104), we get a palindrome (52236863225).

The spelling of 40104423121 in words is "forty billion, one hundred four million, four hundred twenty-three thousand, one hundred twenty-one".