140213324310421 has 4 divisors (see below), whose sum is σ = 140213871269344. Its totient is φ = 140212777351500.

The previous prime is 140213324310413. The next prime is 140213324310431. The reversal of 140213324310421 is 124013423312041.

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 not a de Polignac number, because 140213324310421 - 2³ = 140213324310413 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 (140213324310431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273094755 + ... + 273607696.

It is an arithmetic number, because the mean of its divisors is an integer number (35053467817336).

Almost surely, 2^{140213324310421} is an apocalyptic number.

It is an amenable number.

140213324310421 is a deficient number, since it is larger than the sum of its proper divisors (546958923).

140213324310421 is an equidigital number, since it uses as much as digits as its factorization.

140213324310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546958922.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 140213324310421 its reverse (124013423312041), we get a palindrome (264226747622462).

The spelling of 140213324310421 in words is "one hundred forty trillion, two hundred thirteen billion, three hundred twenty-four million, three hundred ten thousand, four hundred twenty-one".