12861101 has 4 divisors (see below), whose sum is σ = 14030304. Its totient is φ = 11691900.

The previous prime is 12861097. The next prime is 12861103. The reversal of 12861101 is 10116821.

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.

It is not a de Polignac number, because 12861101 - 2² = 12861097 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 (12861103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584585 + ... + 584606.

It is an arithmetic number, because the mean of its divisors is an integer number (3507576).

Almost surely, 2^12861101 is an apocalyptic number.

12861101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12861101 is a deficient number, since it is larger than the sum of its proper divisors (1169203).

12861101 is a wasteful number, since it uses less digits than its factorization.

12861101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169202.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 12861101 is about 3586.2377221818. The cubic root of 12861101 is about 234.2930375568.

Adding to 12861101 its reverse (10116821), we get a palindrome (22977922).

The spelling of 12861101 in words is "twelve million, eight hundred sixty-one thousand, one hundred one".