12391030 has 8 divisors (see below), whose sum is σ = 22303872. Its totient is φ = 4956408.

The previous prime is 12391019. The next prime is 12391031. The reversal of 12391030 is 3019321.

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

It is a junction number, because it is equal to n+sod(n) for n = 12390989 and 12391007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12391031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619542 + ... + 619561.

It is an arithmetic number, because the mean of its divisors is an integer number (2787984).

Almost surely, 2^12391030 is an apocalyptic number.

12391030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12391030 is a deficient number, since it is larger than the sum of its proper divisors (9912842).

12391030 is a wasteful number, since it uses less digits than its factorization.

12391030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239110.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 12391030 is about 3520.0894874989. The cubic root of 12391030 is about 231.4030805275.

The spelling of 12391030 in words is "twelve million, three hundred ninety-one thousand, thirty".