140423304021 has 128 divisors (see below), whose sum is σ = 258741374976. Its totient is φ = 65373972480.

The previous prime is 140423303987. The next prime is 140423304041. The reversal of 140423304021 is 120403324041.

It is not a de Polignac number, because 140423304021 - 2⁷ = 140423303893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140423303982 and 140423304000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140423304041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 65221081 + ... + 65223233.

It is an arithmetic number, because the mean of its divisors is an integer number (2021416992).

Almost surely, 2^140423304021 is an apocalyptic number.

140423304021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140423304021 is a deficient number, since it is larger than the sum of its proper divisors (118318070955).

140423304021 is a wasteful number, since it uses less digits than its factorization.

140423304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 140423304021 its reverse (120403324041), we get a palindrome (260826628062).

It can be divided in two parts, 140423 and 304021, that added together give a palindrome (444444).

The spelling of 140423304021 in words is "one hundred forty billion, four hundred twenty-three million, three hundred four thousand, twenty-one".