140044343121 has 16 divisors (see below), whose sum is σ = 207546345600. Its totient is φ = 93329935344.

The previous prime is 140044343077. The next prime is 140044343189. The reversal of 140044343121 is 121343440041.

It is not a de Polignac number, because 140044343121 - 2⁶ = 140044343057 is a prime.

It is a super-2 number, since 2×140044343121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140044343191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837541 + ... + 990738.

It is an arithmetic number, because the mean of its divisors is an integer number (12971646600).

Almost surely, 2^140044343121 is an apocalyptic number.

It is an amenable number.

140044343121 is a deficient number, since it is larger than the sum of its proper divisors (67502002479).

140044343121 is a wasteful number, since it uses less digits than its factorization.

140044343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831125 (or 1831119 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 140044343121 its reverse (121343440041), we get a palindrome (261387783162).

The spelling of 140044343121 in words is "one hundred forty billion, forty-four million, three hundred forty-three thousand, one hundred twenty-one".