140123121125142 has 16 divisors (see below), whose sum is σ = 280301857758720. Its totient is φ = 46698437790312.

The previous prime is 140123121125089. The next prime is 140123121125147. The reversal of 140123121125142 is 241521121321041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140123121125147) 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, 2317280098 + ... + 2317340565.

It is an arithmetic number, because the mean of its divisors is an integer number (17518866109920).

Almost surely, 2^{140123121125142} is an apocalyptic number.

140123121125142 is an abundant number, since it is smaller than the sum of its proper divisors (140178736633578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140123121125142 is a wasteful number, since it uses less digits than its factorization.

140123121125142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634625707.

The product of its (nonzero) digits is 3840, while the sum is 30.

Adding to 140123121125142 its reverse (241521121321041), we get a palindrome (381644242446183).

The spelling of 140123121125142 in words is "one hundred forty trillion, one hundred twenty-three billion, one hundred twenty-one million, one hundred twenty-five thousand, one hundred forty-two".