140234213342321 has 4 divisors (see below), whose sum is σ = 160267672391232. Its totient is φ = 120200754293412.

The previous prime is 140234213342303. The next prime is 140234213342357. The reversal of 140234213342321 is 123243312432041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140234213342321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140234213342021) 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, 10016729524445 + ... + 10016729524458.

It is an arithmetic number, because the mean of its divisors is an integer number (40066918097808).

Almost surely, 2^{140234213342321} is an apocalyptic number.

It is an amenable number.

140234213342321 is a deficient number, since it is larger than the sum of its proper divisors (20033459048911).

140234213342321 is an equidigital number, since it uses as much as digits as its factorization.

140234213342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033459048910.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 140234213342321 its reverse (123243312432041), we get a palindrome (263477525774362).

The spelling of 140234213342321 in words is "one hundred forty trillion, two hundred thirty-four billion, two hundred thirteen million, three hundred forty-two thousand, three hundred twenty-one".