140342323121 has 128 divisors (see below), whose sum is σ = 202349199360. Its totient is φ = 93722572800.

The previous prime is 140342323109. The next prime is 140342323123. The reversal of 140342323121 is 121323243041.

140342323121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140342323121 - 2³⁰ = 139268581297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140342323123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 376252691 + ... + 376253063.

It is an arithmetic number, because the mean of its divisors is an integer number (1580853120).

Almost surely, 2^140342323121 is an apocalyptic number.

140342323121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140342323121 is a deficient number, since it is larger than the sum of its proper divisors (62006876239).

140342323121 is a wasteful number, since it uses less digits than its factorization.

140342323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 140342323121 its reverse (121323243041), we get a palindrome (261665566162).

The spelling of 140342323121 in words is "one hundred forty billion, three hundred forty-two million, three hundred twenty-three thousand, one hundred twenty-one".