40013201121 has 16 divisors (see below), whose sum is σ = 56517912000. Its totient is φ = 25093572608.

The previous prime is 40013201117. The next prime is 40013201149. The reversal of 40013201121 is 12110231004.

It is a cyclic number.

It is not a de Polignac number, because 40013201121 - 2² = 40013201117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40013201121.

It is not an unprimeable number, because it can be changed into a prime (40013201101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97296 + ... + 299153.

It is an arithmetic number, because the mean of its divisors is an integer number (3532369500).

Almost surely, 2^40013201121 is an apocalyptic number.

It is an amenable number.

40013201121 is a deficient number, since it is larger than the sum of its proper divisors (16504710879).

40013201121 is a wasteful number, since it uses less digits than its factorization.

40013201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398448.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 40013201121 its reverse (12110231004), we get a palindrome (52123432125).

The spelling of 40013201121 in words is "forty billion, thirteen million, two hundred one thousand, one hundred twenty-one".