140123404133021 has 32 divisors (see below), whose sum is σ = 150414039908352. Its totient is φ = 130216009271040.

The previous prime is 140123404132961. The next prime is 140123404133047. The reversal of 140123404133021 is 120331404321041.

It is a de Polignac number, because none of the positive numbers 2^k-140123404133021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140123404133071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2348551436 + ... + 2348611098.

It is an arithmetic number, because the mean of its divisors is an integer number (4700438747136).

Almost surely, 2^{140123404133021} is an apocalyptic number.

It is an amenable number.

140123404133021 is a deficient number, since it is larger than the sum of its proper divisors (10290635775331).

140123404133021 is a wasteful number, since it uses less digits than its factorization.

140123404133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72353.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 140123404133021 its reverse (120331404321041), we get a palindrome (260454808454062).

The spelling of 140123404133021 in words is "one hundred forty trillion, one hundred twenty-three billion, four hundred four million, one hundred thirty-three thousand, twenty-one".