213315233564 has 18 divisors (see below), whose sum is σ = 393983193744. Its totient is φ = 101044057320.

The previous prime is 213315233479. The next prime is 213315233567. The reversal of 213315233564 is 465332513312.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213315233567) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 73861172 + ... + 73864059.

It is an arithmetic number, because the mean of its divisors is an integer number (21887955208).

Almost surely, 2^213315233564 is an apocalyptic number.

It is an amenable number.

213315233564 is a deficient number, since it is larger than the sum of its proper divisors (180667960180).

213315233564 is a wasteful number, since it uses less digits than its factorization.

213315233564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147725273 (or 147725252 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

Adding to 213315233564 its reverse (465332513312), we get a palindrome (678647746876).

The spelling of 213315233564 in words is "two hundred thirteen billion, three hundred fifteen million, two hundred thirty-three thousand, five hundred sixty-four".