140234213324321 has 4 divisors (see below), whose sum is σ = 140383240119444. Its totient is φ = 140085186529200.

The previous prime is 140234213324299. The next prime is 140234213324341. The reversal of 140234213324321 is 123423312432041.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 83492809753600 + 56741403570721 = 9137440^2 + 7532689^2 .

It is a cyclic number.

It is not a de Polignac number, because 140234213324321 - 2⁴⁶ = 69865469146657 is a prime.

It is a super-2 number, since 2×140234213324321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140234213324341) 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, 74513396150 + ... + 74513398031.

It is an arithmetic number, because the mean of its divisors is an integer number (35095810029861).

Almost surely, 2^{140234213324321} is an apocalyptic number.

It is an amenable number.

140234213324321 is a deficient number, since it is larger than the sum of its proper divisors (149026795123).

140234213324321 is an equidigital number, since it uses as much as digits as its factorization.

140234213324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149026795122.

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

Adding to 140234213324321 its reverse (123423312432041), we get a palindrome (263657525756362).

The spelling of 140234213324321 in words is "one hundred forty trillion, two hundred thirty-four billion, two hundred thirteen million, three hundred twenty-four thousand, three hundred twenty-one".