12130356 has 24 divisors (see below), whose sum is σ = 32347840. Its totient is φ = 3465792.

The previous prime is 12130351. The next prime is 12130357. The reversal of 12130356 is 65303121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130351) 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, 72121 + ... + 72288.

Almost surely, 2^12130356 is an apocalyptic number.

It is an amenable number.

12130356 is an abundant number, since it is smaller than the sum of its proper divisors (20217484).

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

12130356 is a wasteful number, since it uses less digits than its factorization.

12130356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144423 (or 144421 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 12130356 is about 3482.8660611628. The cubic root of 12130356 is about 229.7688667345.

Adding to 12130356 its reverse (65303121), we get a palindrome (77433477).

The spelling of 12130356 in words is "twelve million, one hundred thirty thousand, three hundred fifty-six".