140023323231023 has 4 divisors (see below), whose sum is σ = 143807737372440. Its totient is φ = 136238909089608.

The previous prime is 140023323230981. The next prime is 140023323231067. The reversal of 140023323231023 is 320132323320041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140023323231023 - 2³⁸ = 139748445324079 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 (140023323234023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892207070653 + ... + 1892207070726.

It is an arithmetic number, because the mean of its divisors is an integer number (35951934343110).

Almost surely, 2^{140023323231023} is an apocalyptic number.

140023323231023 is a deficient number, since it is larger than the sum of its proper divisors (3784414141417).

140023323231023 is an equidigital number, since it uses as much as digits as its factorization.

140023323231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784414141416.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 140023323231023 its reverse (320132323320041), we get a palindrome (460155646551064).

The spelling of 140023323231023 in words is "one hundred forty trillion, twenty-three billion, three hundred twenty-three million, two hundred thirty-one thousand, twenty-three".