12193311 has 16 divisors (see below), whose sum is σ = 18113760. Its totient is φ = 7244160.

The previous prime is 12193309. The next prime is 12193333. The reversal of 12193311 is 11339121.

It is not a de Polignac number, because 12193311 - 2¹ = 12193309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193361) 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 15 ways as a sum of consecutive naturals, for example, 4260 + ... + 6521.

It is an arithmetic number, because the mean of its divisors is an integer number (1132110).

Almost surely, 2^12193311 is an apocalyptic number.

12193311 is a deficient number, since it is larger than the sum of its proper divisors (5920449).

12193311 is a wasteful number, since it uses less digits than its factorization.

12193311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826.

The product of its digits is 162, while the sum is 21.

The square root of 12193311 is about 3491.8921804661. The cubic root of 12193311 is about 230.1656714367.

The spelling of 12193311 in words is "twelve million, one hundred ninety-three thousand, three hundred eleven".