140213324323021 has 4 divisors (see below), whose sum is σ = 140217798724092. Its totient is φ = 140208849921952.

The previous prime is 140213324322979. The next prime is 140213324323069. The reversal of 140213324323021 is 120323423312041.

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 118906920758025 + 21306403564996 = 10904445^2 + 4615886^2 .

It is a cyclic number.

It is not a de Polignac number, because 140213324323021 - 2¹⁷ = 140213324191949 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 (140213324323081) 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, 2237153530 + ... + 2237216203.

It is an arithmetic number, because the mean of its divisors is an integer number (35054449681023).

Almost surely, 2^{140213324323021} is an apocalyptic number.

It is an amenable number.

140213324323021 is a deficient number, since it is larger than the sum of its proper divisors (4474401071).

140213324323021 is an equidigital number, since it uses as much as digits as its factorization.

140213324323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474401070.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 140213324323021 its reverse (120323423312041), we get a palindrome (260536747635062).

The spelling of 140213324323021 in words is "one hundred forty trillion, two hundred thirteen billion, three hundred twenty-four million, three hundred twenty-three thousand, twenty-one".