213440021101 has 8 divisors (see below), whose sum is σ = 223114112000. Its totient is φ = 203940238320.

The previous prime is 213440021059. The next prime is 213440021161. The reversal of 213440021101 is 101120044312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213440021101 - 2³¹ = 211292537453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213440021161) 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, 43574526 + ... + 43579423.

It is an arithmetic number, because the mean of its divisors is an integer number (27889264000).

Almost surely, 2^213440021101 is an apocalyptic number.

It is an amenable number.

213440021101 is a deficient number, since it is larger than the sum of its proper divisors (9674090899).

213440021101 is an equidigital number, since it uses as much as digits as its factorization.

213440021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87154059.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 213440021101 its reverse (101120044312), we get a palindrome (314560065413).

The spelling of 213440021101 in words is "two hundred thirteen billion, four hundred forty million, twenty-one thousand, one hundred one".