140232144321 has 10 divisors (see below), whose sum is σ = 209482586082. Its totient is φ = 93488096160.

The previous prime is 140232144289. The next prime is 140232144347. The reversal of 140232144321 is 123441232041.

140232144321 is a `hidden beast` number, since 1 + 402 + 3 + 214 + 43 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140074290225 + 157854096 = 374265^2 + 12564^2 .

It is not a de Polignac number, because 140232144321 - 2⁵ = 140232144289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140232144821) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 865630440 + ... + 865630601.

Almost surely, 2^140232144321 is an apocalyptic number.

It is an amenable number.

140232144321 is a deficient number, since it is larger than the sum of its proper divisors (69250441761).

140232144321 is an equidigital number, since it uses as much as digits as its factorization.

140232144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731261053 (or 1731261044 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 140232144321 its reverse (123441232041), we get a palindrome (263673376362).

The spelling of 140232144321 in words is "one hundred forty billion, two hundred thirty-two million, one hundred forty-four thousand, three hundred twenty-one".