12320011111 has 8 divisors (see below), whose sum is σ = 12969433440. Its totient is φ = 11680069632.

The previous prime is 12320011097. The next prime is 12320011117. The reversal of 12320011111 is 11111002321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12320011111 - 2¹⁵ = 12319978343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320011091 and 12320011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320011117) 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, 2367546 + ... + 2372743.

It is an arithmetic number, because the mean of its divisors is an integer number (1621179180).

Almost surely, 2^12320011111 is an apocalyptic number.

12320011111 is a deficient number, since it is larger than the sum of its proper divisors (649422329).

12320011111 is a wasteful number, since it uses less digits than its factorization.

12320011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740425.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12320011111 its reverse (11111002321), we get a palindrome (23431013432).

The spelling of 12320011111 in words is "twelve billion, three hundred twenty million, eleven thousand, one hundred eleven".