213345543312 has 120 divisors (see below), whose sum is σ = 657799915968. Its totient is φ = 64010016000.

The previous prime is 213345543311. The next prime is 213345543319.

213345543312 is a `hidden beast` number, since 2 + 1 + 334 + 5 + 5 + 4 + 3 + 312 = 666.

213345543312 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (213345543311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506788 + ... + 826755.

Almost surely, 2^213345543312 is an apocalyptic number.

213345543312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213345543312 is an abundant number, since it is smaller than the sum of its proper divisors (444454372656).

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

213345543312 is a wasteful number, since it uses less digits than its factorization.

213345543312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333669 (or 1333660 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

It can be divided in two parts, 213345 and 543312, that added together give a palindrome (756657).

The spelling of 213345543312 in words is "two hundred thirteen billion, three hundred forty-five million, five hundred forty-three thousand, three hundred twelve".