12446004331 has 4 divisors (see below), whose sum is σ = 12574313752. Its totient is φ = 12317694912.

The previous prime is 12446004313. The next prime is 12446004349. The reversal of 12446004331 is 13340064421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13340064421 = 137 ⋅97372733.

It is an interprime number because it is at equal distance from previous prime (12446004313) and next prime (12446004349).

It is a cyclic number.

It is not a de Polignac number, because 12446004331 - 2¹³ = 12445996139 is a prime.

It is a super-2 number, since 2×12446004331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12446004331.

It is not an unprimeable number, because it can be changed into a prime (12446004301) 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, 64154565 + ... + 64154758.

It is an arithmetic number, because the mean of its divisors is an integer number (3143578438).

Almost surely, 2^12446004331 is an apocalyptic number.

12446004331 is a deficient number, since it is larger than the sum of its proper divisors (128309421).

12446004331 is an equidigital number, since it uses as much as digits as its factorization.

12446004331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128309420.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12446004331 its reverse (13340064421), we get a palindrome (25786068752).

The spelling of 12446004331 in words is "twelve billion, four hundred forty-six million, four thousand, three hundred thirty-one".