140020123423 has 8 divisors (see below), whose sum is σ = 141220036800. Its totient is φ = 138825327648.

The previous prime is 140020123417. The next prime is 140020123499. The reversal of 140020123423 is 324321020041.

140020123423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140020123423 - 2²⁵ = 139986568991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140020123394 and 140020123403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020123123) 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 7 ways as a sum of consecutive naturals, for example, 1224436 + ... + 1333897.

It is an arithmetic number, because the mean of its divisors is an integer number (17652504600).

Almost surely, 2^140020123423 is an apocalyptic number.

140020123423 is a deficient number, since it is larger than the sum of its proper divisors (1199913377).

140020123423 is a wasteful number, since it uses less digits than its factorization.

140020123423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558801.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 140020123423 its reverse (324321020041), we get a palindrome (464341143464).

The spelling of 140020123423 in words is "one hundred forty billion, twenty million, one hundred twenty-three thousand, four hundred twenty-three".