213411340421 has 8 divisors (see below), whose sum is σ = 213983101080. Its totient is φ = 212839944192.

The previous prime is 213411340327. The next prime is 213411340423. The reversal of 213411340421 is 124043114312.

It can be written as a sum of positive squares in 4 ways, for example, as 109541140900 + 103870199521 = 330970^2 + 322289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213411340421 - 2¹⁸ = 213411078277 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 (213411340423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102535 + ... + 1281563.

It is an arithmetic number, because the mean of its divisors is an integer number (26747887635).

Almost surely, 2^213411340421 is an apocalyptic number.

It is an amenable number.

213411340421 is a deficient number, since it is larger than the sum of its proper divisors (571760659).

213411340421 is a wasteful number, since it uses less digits than its factorization.

213411340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182215.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 213411340421 its reverse (124043114312), we get a palindrome (337454454733).

The spelling of 213411340421 in words is "two hundred thirteen billion, four hundred eleven million, three hundred forty thousand, four hundred twenty-one".