40112021105 has 8 divisors (see below), whose sum is σ = 51837073512. Its totient is φ = 29621184768.

The previous prime is 40112021087. The next prime is 40112021113. The reversal of 40112021105 is 50112021104.

It can be written as a sum of positive squares in 4 ways, for example, as 2277102961 + 37834918144 = 47719^2 + 194512^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40112021105 - 2¹² = 40112017009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308553944 + ... + 308554073.

It is an arithmetic number, because the mean of its divisors is an integer number (6479634189).

Almost surely, 2^40112021105 is an apocalyptic number.

It is an amenable number.

40112021105 is a deficient number, since it is larger than the sum of its proper divisors (11725052407).

40112021105 is a wasteful number, since it uses less digits than its factorization.

40112021105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617108035.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 40112021105 its reverse (50112021104), we get a palindrome (90224042209).

Subtracting 40112021105 from its reverse (50112021104), we obtain a palindrome (9999999999).

The spelling of 40112021105 in words is "forty billion, one hundred twelve million, twenty-one thousand, one hundred five".