31144113211244 has 12 divisors (see below), whose sum is σ = 59456943403368. Its totient is φ = 14156415096000.

The previous prime is 31144113211243. The next prime is 31144113211249. The reversal of 31144113211244 is 44211231144113.

It is a self number, because there is not a number n which added to its sum of digits gives 31144113211244.

It is not an unprimeable number, because it can be changed into a prime (31144113211243) 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 in 3 ways as a sum of consecutive naturals, for example, 353910377357 + ... + 353910377444.

It is an arithmetic number, because the mean of its divisors is an integer number (4954745283614).

Almost surely, 2^{31144113211244} is an apocalyptic number.

It is an amenable number.

31144113211244 is a deficient number, since it is larger than the sum of its proper divisors (28312830192124).

31144113211244 is a wasteful number, since it uses less digits than its factorization.

31144113211244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707820754816 (or 707820754814 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

Adding to 31144113211244 its reverse (44211231144113), we get a palindrome (75355344355357).

The spelling of 31144113211244 in words is "thirty-one trillion, one hundred forty-four billion, one hundred thirteen million, two hundred eleven thousand, two hundred forty-four".