12130811 has 8 divisors (see below), whose sum is σ = 15124224. Its totient is φ = 9452520.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130811 is 11803121.

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

It is a de Polignac number, because none of the positive numbers 2^k-12130811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12130811.

It is not an unprimeable number, because it can be changed into a prime (12130861) 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, 78695 + ... + 78848.

It is an arithmetic number, because the mean of its divisors is an integer number (1890528).

Almost surely, 2^12130811 is an apocalyptic number.

12130811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12130811 is a deficient number, since it is larger than the sum of its proper divisors (2993413).

12130811 is a wasteful number, since it uses less digits than its factorization.

12130811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157561.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 12130811 is about 3482.9313803174. The cubic root of 12130811 is about 229.7717395143.

Adding to 12130811 its reverse (11803121), we get a palindrome (23933932).

The spelling of 12130811 in words is "twelve million, one hundred thirty thousand, eight hundred eleven".