213444430120 has 64 divisors (see below), whose sum is σ = 488947777920. Its totient is φ = 83843821824.

The previous prime is 213444430079. The next prime is 213444430123. The reversal of 213444430120 is 21034444312.

It is not an unprimeable number, because it can be changed into a prime (213444430123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361954 + ... + 746926.

It is an arithmetic number, because the mean of its divisors is an integer number (7639809030).

Almost surely, 2^213444430120 is an apocalyptic number.

213444430120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213444430120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244473888960).

213444430120 is an abundant number, since it is smaller than the sum of its proper divisors (275503347800).

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

213444430120 is a wasteful number, since it uses less digits than its factorization.

213444430120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385234 (or 385230 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 213444430120 its reverse (21034444312), we get a palindrome (234478874432).

The spelling of 213444430120 in words is "two hundred thirteen billion, four hundred forty-four million, four hundred thirty thousand, one hundred twenty".