12011326247 has 4 divisors (see below), whose sum is σ = 12398788416. Its totient is φ = 11623864080.

The previous prime is 12011326213. The next prime is 12011326277. The reversal of 12011326247 is 74262311021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12011326247 - 2²⁸ = 11742890791 is a prime.

It is a super-2 number, since 2×12011326247² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011326277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193731038 + ... + 193731099.

It is an arithmetic number, because the mean of its divisors is an integer number (3099697104).

Almost surely, 2^12011326247 is an apocalyptic number.

12011326247 is a deficient number, since it is larger than the sum of its proper divisors (387462169).

12011326247 is an equidigital number, since it uses as much as digits as its factorization.

12011326247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387462168.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 12011326247 its reverse (74262311021), we get a palindrome (86273637268).

The spelling of 12011326247 in words is "twelve billion, eleven million, three hundred twenty-six thousand, two hundred forty-seven".