40113124021 has 8 divisors (see below), whose sum is σ = 40292553600. Its totient is φ = 39933791520.

The previous prime is 40113124013. The next prime is 40113124049. The reversal of 40113124021 is 12042131104.

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 40113124021 - 2³ = 40113124013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40113124021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113124091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878526 + ... + 923056.

It is an arithmetic number, because the mean of its divisors is an integer number (5036569200).

Almost surely, 2^40113124021 is an apocalyptic number.

It is an amenable number.

40113124021 is a deficient number, since it is larger than the sum of its proper divisors (179429579).

40113124021 is a wasteful number, since it uses less digits than its factorization.

40113124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48539.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 40113124021 its reverse (12042131104), we get a palindrome (52155255125).

The spelling of 40113124021 in words is "forty billion, one hundred thirteen million, one hundred twenty-four thousand, twenty-one".