12011330331 has 96 divisors (see below), whose sum is σ = 24665292288. Its totient is φ = 5420805120.

The previous prime is 12011330327. The next prime is 12011330341. The reversal of 12011330331 is 13303311021.

It is a happy number.

12011330331 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 1 + 330 + 331 = 666.

It is not a de Polignac number, because 12011330331 - 2² = 12011330327 is a prime.

It is a super-2 number, since 2×12011330331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12011330341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 113940 + ... + 192366.

It is an arithmetic number, because the mean of its divisors is an integer number (256930128).

Almost surely, 2^12011330331 is an apocalyptic number.

12011330331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011330331 is an abundant number, since it is smaller than the sum of its proper divisors (12653961957).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011330331 is a wasteful number, since it uses less digits than its factorization.

12011330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78481 (or 78478 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 12011330331 its reverse (13303311021), we get a palindrome (25314641352).

The spelling of 12011330331 in words is "twelve billion, eleven million, three hundred thirty thousand, three hundred thirty-one".