140104143021 has 4 divisors (see below), whose sum is σ = 186805524032. Its totient is φ = 93402762012.

The previous prime is 140104143007. The next prime is 140104143079. The reversal of 140104143021 is 120341401041.

140104143021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120341401041 = 3 ⋅40113800347.

It is not a de Polignac number, because 140104143021 - 2³⁰ = 139030401197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140104144021) 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 3 ways as a sum of consecutive naturals, for example, 23350690501 + ... + 23350690506.

It is an arithmetic number, because the mean of its divisors is an integer number (46701381008).

Almost surely, 2^140104143021 is an apocalyptic number.

It is an amenable number.

140104143021 is a deficient number, since it is larger than the sum of its proper divisors (46701381011).

140104143021 is an equidigital number, since it uses as much as digits as its factorization.

140104143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46701381010.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 140104143021 its reverse (120341401041), we get a palindrome (260445544062).

The spelling of 140104143021 in words is "one hundred forty billion, one hundred four million, one hundred forty-three thousand, twenty-one".