213230021101 has 4 divisors (see below), whose sum is σ = 213581306752. Its totient is φ = 212878735452.

The previous prime is 213230021071. The next prime is 213230021141. The reversal of 213230021101 is 101120032312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213230021101 - 2²¹ = 213227923949 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 (213230021141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175641915 + ... + 175643128.

It is an arithmetic number, because the mean of its divisors is an integer number (53395326688).

Almost surely, 2^213230021101 is an apocalyptic number.

It is an amenable number.

213230021101 is a deficient number, since it is larger than the sum of its proper divisors (351285651).

213230021101 is an equidigital number, since it uses as much as digits as its factorization.

213230021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351285650.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213230021101 its reverse (101120032312), we get a palindrome (314350053413).

The spelling of 213230021101 in words is "two hundred thirteen billion, two hundred thirty million, twenty-one thousand, one hundred one".