12391009346 has 8 divisors (see below), whose sum is σ = 18863924880. Its totient is φ = 6103034388.

The previous prime is 12391009333. The next prime is 12391009357. The reversal of 12391009346 is 64390019321.

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

It is a super-2 number, since 2×12391009346² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46234976 + ... + 46235243.

It is an arithmetic number, because the mean of its divisors is an integer number (2357990610).

Almost surely, 2^12391009346 is an apocalyptic number.

12391009346 is a deficient number, since it is larger than the sum of its proper divisors (6472915534).

12391009346 is an equidigital number, since it uses as much as digits as its factorization.

12391009346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92470288.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 12391009346 in words is "twelve billion, three hundred ninety-one million, nine thousand, three hundred forty-six".