213545545312 has 48 divisors (see below), whose sum is σ = 458676739584. Its totient is φ = 97057872000.

The previous prime is 213545545309. The next prime is 213545545319.

213545545312 is nontrivially palindromic in base 10.

213545545312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213545545319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6287737 + ... + 6321607.

It is an arithmetic number, because the mean of its divisors is an integer number (9555765408).

Almost surely, 2^213545545312 is an apocalyptic number.

213545545312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213545545312 is an abundant number, since it is smaller than the sum of its proper divisors (245131194272).

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

213545545312 is a wasteful number, since it uses less digits than its factorization.

213545545312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51803 (or 51795 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

It can be divided in two parts, 213545 and 545312, that added together give a palindrome (758857).

The spelling of 213545545312 in words is "two hundred thirteen billion, five hundred forty-five million, five hundred forty-five thousand, three hundred twelve".