12102113 has 4 divisors (see below), whose sum is σ = 12814020. Its totient is φ = 11390208.

The previous prime is 12102091. The next prime is 12102127. The reversal of 12102113 is 31120121.

12102113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3411409 + 8690704 = 1847^2 + 2948^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102113 - 2⁸ = 12101857 is a prime.

It is a super-2 number, since 2×12102113² = 292922278129538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102094 and 12102103.

It is not an unprimeable number, because it can be changed into a prime (12102133) 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, 355928 + ... + 355961.

It is an arithmetic number, because the mean of its divisors is an integer number (3203505).

Almost surely, 2^12102113 is an apocalyptic number.

It is an amenable number.

12102113 is a deficient number, since it is larger than the sum of its proper divisors (711907).

12102113 is an equidigital number, since it uses as much as digits as its factorization.

12102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711906.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12102113 is about 3478.8091353220. The cubic root of 12102113 is about 229.5904052229.

Adding to 12102113 its reverse (31120121), we get a palindrome (43222234).

The spelling of 12102113 in words is "twelve million, one hundred two thousand, one hundred thirteen".