40320143121 has 8 divisors (see below), whose sum is σ = 55010428000. Its totient is φ = 26254976832.

The previous prime is 40320143119. The next prime is 40320143141. The reversal of 40320143121 is 12134102304.

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

It is not a de Polignac number, because 40320143121 - 2¹ = 40320143119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40320143111) 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, 156279496 + ... + 156279753.

It is an arithmetic number, because the mean of its divisors is an integer number (6876303500).

Almost surely, 2^40320143121 is an apocalyptic number.

It is an amenable number.

40320143121 is a deficient number, since it is larger than the sum of its proper divisors (14690284879).

40320143121 is a wasteful number, since it uses less digits than its factorization.

40320143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312559295.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40320143121 its reverse (12134102304), we get a palindrome (52454245425).

The spelling of 40320143121 in words is "forty billion, three hundred twenty million, one hundred forty-three thousand, one hundred twenty-one".