12143101 has 4 divisors (see below), whose sum is σ = 12169792. Its totient is φ = 12116412.

The previous prime is 12143099. The next prime is 12143107. The reversal of 12143101 is 10134121.

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 an emirpimes, since its reverse is a distinct semiprime: 10134121 = 2791 ⋅3631.

It is a cyclic number.

It is not a de Polignac number, because 12143101 - 2¹ = 12143099 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 (12143107) 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, 12651 + ... + 13576.

It is an arithmetic number, because the mean of its divisors is an integer number (3042448).

Almost surely, 2^12143101 is an apocalyptic number.

It is an amenable number.

12143101 is a deficient number, since it is larger than the sum of its proper divisors (26691).

12143101 is an equidigital number, since it uses as much as digits as its factorization.

12143101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26690.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12143101 is about 3484.6952520988. The cubic root of 12143101 is about 229.8493089795.

Adding to 12143101 its reverse (10134121), we get a palindrome (22277222).

The spelling of 12143101 in words is "twelve million, one hundred forty-three thousand, one hundred one".