140021443023 has 32 divisors (see below), whose sum is σ = 236708075520. Its totient is φ = 71505550560.

The previous prime is 140021442997. The next prime is 140021443031. The reversal of 140021443023 is 320344120041.

It is a de Polignac number, because none of the positive numbers 2^k-140021443023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140021442984 and 140021443002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140021443043) 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, 5123265 + ... + 5150522.

It is an arithmetic number, because the mean of its divisors is an integer number (7397127360).

Almost surely, 2^140021443023 is an apocalyptic number.

140021443023 is a deficient number, since it is larger than the sum of its proper divisors (96686632497).

140021443023 is a wasteful number, since it uses less digits than its factorization.

140021443023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273867.

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

Adding to 140021443023 its reverse (320344120041), we get a palindrome (460365563064).

The spelling of 140021443023 in words is "one hundred forty billion, twenty-one million, four hundred forty-three thousand, twenty-three".