213020331135 has 32 divisors (see below), whose sum is σ = 352120995840. Its totient is φ = 109854144000.

The previous prime is 213020331103. The next prime is 213020331179. The reversal of 213020331135 is 531133020312.

It is not a de Polignac number, because 213020331135 - 2⁵ = 213020331103 is a prime.

It is a super-2 number, since 2×213020331135² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367746 + ... + 749184.

It is an arithmetic number, because the mean of its divisors is an integer number (11003781120).

Almost surely, 2^213020331135 is an apocalyptic number.

213020331135 is a deficient number, since it is larger than the sum of its proper divisors (139100664705).

213020331135 is a wasteful number, since it uses less digits than its factorization.

213020331135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382679.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 213020331135 its reverse (531133020312), we get a palindrome (744153351447).

The spelling of 213020331135 in words is "two hundred thirteen billion, twenty million, three hundred thirty-one thousand, one hundred thirty-five".