213352421045 has 8 divisors (see below), whose sum is σ = 256039121880. Its totient is φ = 170671125760.

The previous prime is 213352421017. The next prime is 213352421047. The reversal of 213352421045 is 540124253312.

It can be written as a sum of positive squares in 4 ways, for example, as 17741707204 + 195610713841 = 133198^2 + 442279^2 .

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

It is not a de Polignac number, because 213352421045 - 2²⁶ = 213285312181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213352421047) 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, 1264040 + ... + 1422849.

It is an arithmetic number, because the mean of its divisors is an integer number (32004890235).

Almost surely, 2^213352421045 is an apocalyptic number.

It is an amenable number.

213352421045 is a deficient number, since it is larger than the sum of its proper divisors (42686700835).

213352421045 is a wasteful number, since it uses less digits than its factorization.

213352421045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702775.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 213352421045 its reverse (540124253312), we get a palindrome (753476674357).

The spelling of 213352421045 in words is "two hundred thirteen billion, three hundred fifty-two million, four hundred twenty-one thousand, forty-five".