213311021101 has 8 divisors (see below), whose sum is σ = 213447943800. Its totient is φ = 213174147072.

The previous prime is 213311021087. The next prime is 213311021113. The reversal of 213311021101 is 101120113312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73577105001 + 139733916100 = 271251^2 + 373810^2 .

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 213311021101 - 2⁹ = 213311020589 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 (213311021141) 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, 12514881 + ... + 12531913.

It is an arithmetic number, because the mean of its divisors is an integer number (26680992975).

Almost surely, 2^213311021101 is an apocalyptic number.

It is an amenable number.

213311021101 is a deficient number, since it is larger than the sum of its proper divisors (136922699).

213311021101 is a wasteful number, since it uses less digits than its factorization.

213311021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24335.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 213311021101 its reverse (101120113312), we get a palindrome (314431134413).

The spelling of 213311021101 in words is "two hundred thirteen billion, three hundred eleven million, twenty-one thousand, one hundred one".