213012331344 has 60 divisors (see below), whose sum is σ = 596270043616. Its totient is φ = 70988463936.

The previous prime is 213012331319. The next prime is 213012331387. The reversal of 213012331344 is 443133210312.

It is a happy number.

213012331344 is a `hidden beast` number, since 2 + 1 + 301 + 2 + 3 + 313 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502149 + ... + 823515.

Almost surely, 2^213012331344 is an apocalyptic number.

213012331344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213012331344 is an abundant number, since it is smaller than the sum of its proper divisors (383257712272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213012331344 is a wasteful number, since it uses less digits than its factorization.

213012331344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325984 (or 325975 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 213012331344 its reverse (443133210312), we get a palindrome (656145541656).

The spelling of 213012331344 in words is "two hundred thirteen billion, twelve million, three hundred thirty-one thousand, three hundred forty-four".