12011541323 has 6 divisors (see below), whose sum is σ = 12272545836. Its totient is φ = 11755974452.

The previous prime is 12011541271. The next prime is 12011541329. The reversal of 12011541323 is 32314511021.

It is not a de Polignac number, because 12011541323 - 2¹⁶ = 12011475787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011541329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2716565 + ... + 2720982.

It is an arithmetic number, because the mean of its divisors is an integer number (2045424306).

Almost surely, 2^12011541323 is an apocalyptic number.

12011541323 is a deficient number, since it is larger than the sum of its proper divisors (261004513).

12011541323 is an frugal number, since it uses more digits than its factorization.

12011541323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437641 (or 5437594 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 12011541323 in words is "twelve billion, eleven million, five hundred forty-one thousand, three hundred twenty-three".