140123121142 has 16 divisors (see below), whose sum is σ = 217399680000. Its totient is φ = 67665620520.

The previous prime is 140123121139. The next prime is 140123121161. The reversal of 140123121142 is 241121321041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2233642 + ... + 2295517.

It is an arithmetic number, because the mean of its divisors is an integer number (13587480000).

Almost surely, 2^140123121142 is an apocalyptic number.

140123121142 is a deficient number, since it is larger than the sum of its proper divisors (77276558858).

140123121142 is a wasteful number, since it uses less digits than its factorization.

140123121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529691.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 140123121142 its reverse (241121321041), we get a palindrome (381244442183).

The spelling of 140123121142 in words is "one hundred forty billion, one hundred twenty-three million, one hundred twenty-one thousand, one hundred forty-two".