31446255144011 has 2 divisors, whose sum is σ = 31446255144012. Its totient is φ = 31446255144010.

The previous prime is 31446255143993. The next prime is 31446255144013. The reversal of 31446255144011 is 11044155264413.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11044155264413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31446255144011 is a prime.

Together with 31446255144013, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31446255144011.

It is not a weakly prime, because it can be changed into another prime (31446255144013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15723127572005 + 15723127572006.

It is an arithmetic number, because the mean of its divisors is an integer number (15723127572006).

Almost surely, 2^{31446255144011} is an apocalyptic number.

31446255144011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31446255144011 is an equidigital number, since it uses as much as digits as its factorization.

31446255144011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 31446255144011 in words is "thirty-one trillion, four hundred forty-six billion, two hundred fifty-five million, one hundred forty-four thousand, eleven".