213111013301 has 4 divisors (see below), whose sum is σ = 213112017504. Its totient is φ = 213110009100.

The previous prime is 213111013289. The next prime is 213111013319. The reversal of 213111013301 is 103310111312.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213111013301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213111013301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111513301) 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, 45155 + ... + 654416.

It is an arithmetic number, because the mean of its divisors is an integer number (53278004376).

Almost surely, 2^213111013301 is an apocalyptic number.

It is an amenable number.

213111013301 is a deficient number, since it is larger than the sum of its proper divisors (1004203).

213111013301 is an equidigital number, since it uses as much as digits as its factorization.

213111013301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004202.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 213111013301 its reverse (103310111312), we get a palindrome (316421124613).

The spelling of 213111013301 in words is "two hundred thirteen billion, one hundred eleven million, thirteen thousand, three hundred one".