213315133442 has 8 divisors (see below), whose sum is σ = 338794623756. Its totient is φ = 100383592192.

The previous prime is 213315133441. The next prime is 213315133501. The reversal of 213315133442 is 244331513312.

It can be written as a sum of positive squares in 2 ways, for example, as 206389398601 + 6925734841 = 454301^2 + 83221^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 213315133399 and 213315133408.

It is not an unprimeable number, because it can be changed into a prime (213315133441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3136987223 + ... + 3136987290.

Almost surely, 2^213315133442 is an apocalyptic number.

213315133442 is a deficient number, since it is larger than the sum of its proper divisors (125479490314).

213315133442 is a wasteful number, since it uses less digits than its factorization.

213315133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273974532.

The product of its digits is 25920, while the sum is 32.

Adding to 213315133442 its reverse (244331513312), we get a palindrome (457646646754).

The spelling of 213315133442 in words is "two hundred thirteen billion, three hundred fifteen million, one hundred thirty-three thousand, four hundred forty-two".