12311130 has 32 divisors (see below), whose sum is σ = 31820544. Its totient is φ = 3030336.

The previous prime is 12311119. The next prime is 12311137. The reversal of 12311130 is 3111321.

12311130 = T₃₉₉ + T₄₀₀ + ... + T₅₁₅.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12311137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15394 + ... + 16173.

It is an arithmetic number, because the mean of its divisors is an integer number (994392).

Almost surely, 2^12311130 is an apocalyptic number.

12311130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311130 is an abundant number, since it is smaller than the sum of its proper divisors (19509414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311130 is a wasteful number, since it uses less digits than its factorization.

12311130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31590.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 12311130 is about 3508.7219895569. The cubic root of 12311130 is about 230.9046288336.

Adding to 12311130 its reverse (3111321), we get a palindrome (15422451).

The spelling of 12311130 in words is "twelve million, three hundred eleven thousand, one hundred thirty".