11230213111 has 4 divisors (see below), whose sum is σ = 12094075672. Its totient is φ = 10366350552.

The previous prime is 11230213097. The next prime is 11230213139. The reversal of 11230213111 is 11131203211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11230213111 - 2⁵ = 11230213079 is a prime.

It is a super-2 number, since 2×11230213111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230213411) 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, 431931261 + ... + 431931286.

It is an arithmetic number, because the mean of its divisors is an integer number (3023518918).

Almost surely, 2^11230213111 is an apocalyptic number.

11230213111 is a deficient number, since it is larger than the sum of its proper divisors (863862561).

11230213111 is an equidigital number, since it uses as much as digits as its factorization.

11230213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863862560.

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

Adding to 11230213111 its reverse (11131203211), we get a palindrome (22361416322).

The spelling of 11230213111 in words is "eleven billion, two hundred thirty million, two hundred thirteen thousand, one hundred eleven".