111000000213 has 10 divisors (see below), whose sum is σ = 165814815254. Its totient is φ = 74000000088.

The previous prime is 111000000211. The next prime is 111000000217. The reversal of 111000000213 is 312000000111.

It can be written as a sum of positive squares in only one way, i.e., 92636227044 + 18363773169 = 304362^2 + 135513^2 .

It is not a de Polignac number, because 111000000213 - 2¹ = 111000000211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000000195 and 111000000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000000211) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 685185106 + ... + 685185267.

Almost surely, 2^111000000213 is an apocalyptic number.

It is an amenable number.

111000000213 is a deficient number, since it is larger than the sum of its proper divisors (54814815041).

111000000213 is an equidigital number, since it uses as much as digits as its factorization.

111000000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370370385 (or 1370370376 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 111000000213 its reverse (312000000111), we get a palindrome (423000000324).

The spelling of 111000000213 in words is "one hundred eleven billion, two hundred thirteen", and thus it is an aban number.