12163811 has 8 divisors (see below), whose sum is σ = 13698048. Its totient is φ = 10701000.

The previous prime is 12163807. The next prime is 12163813. The reversal of 12163811 is 11836121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12163811 - 2² = 12163807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12163813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17495 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (1712256).

Almost surely, 2^12163811 is an apocalyptic number.

12163811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12163811 is a deficient number, since it is larger than the sum of its proper divisors (1534237).

12163811 is a wasteful number, since it uses less digits than its factorization.

12163811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35713.

The product of its digits is 288, while the sum is 23.

The square root of 12163811 is about 3487.6655516262. The cubic root of 12163811 is about 229.9799037262.

Adding to 12163811 its reverse (11836121), we get a palindrome (23999932).

The spelling of 12163811 in words is "twelve million, one hundred sixty-three thousand, eight hundred eleven".