13445431312011 has 8 divisors (see below), whose sum is σ = 17929950227520. Its totient is φ = 8962266635592.

The previous prime is 13445431312009. The next prime is 13445431312021. The reversal of 13445431312011 is 11021313454431.

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 13445431312011 - 2¹ = 13445431312009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13445431312021) 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 7 ways as a sum of consecutive naturals, for example, 338536605 + ... + 338576318.

It is an arithmetic number, because the mean of its divisors is an integer number (2241243778440).

Almost surely, 2^{13445431312011} is an apocalyptic number.

13445431312011 is a deficient number, since it is larger than the sum of its proper divisors (4484518915509).

13445431312011 is an equidigital number, since it uses as much as digits as its factorization.

13445431312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677119545.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 13445431312011 its reverse (11021313454431), we get a palindrome (24466744766442).

The spelling of 13445431312011 in words is "thirteen trillion, four hundred forty-five billion, four hundred thirty-one million, three hundred twelve thousand, eleven".