12030381111 has 8 divisors (see below), whose sum is σ = 18332009344. Its totient is φ = 6874503480.

The previous prime is 12030381101. The next prime is 12030381131. The reversal of 12030381111 is 11118303021.

It is a happy number.

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

It is not a de Polignac number, because 12030381111 - 2¹¹ = 12030379063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 572875291 = 12030381111 / (1 + 2 + 0 + 3 + 0 + 3 + 8 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030381101) 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, 286437625 + ... + 286437666.

It is an arithmetic number, because the mean of its divisors is an integer number (2291501168).

Almost surely, 2^12030381111 is an apocalyptic number.

12030381111 is a deficient number, since it is larger than the sum of its proper divisors (6301628233).

12030381111 is an equidigital number, since it uses as much as digits as its factorization.

12030381111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572875301.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12030381111 its reverse (11118303021), we get a palindrome (23148684132).

The spelling of 12030381111 in words is "twelve billion, thirty million, three hundred eighty-one thousand, one hundred eleven".