31144214444 has 12 divisors (see below), whose sum is σ = 62288428944. Its totient is φ = 13347520464.

The previous prime is 31144214429. The next prime is 31144214447. The reversal of 31144214444 is 44441244113.

31144214444 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 31144214444.

It is not an unprimeable number, because it can be changed into a prime (31144214447) 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, 556146659 + ... + 556146714.

It is an arithmetic number, because the mean of its divisors is an integer number (5190702412).

Almost surely, 2^31144214444 is an apocalyptic number.

It is an amenable number.

31144214444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144214444 is a wasteful number, since it uses less digits than its factorization.

31144214444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112293384 (or 1112293382 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

Adding to 31144214444 its reverse (44441244113), we get a palindrome (75585458557).

The spelling of 31144214444 in words is "thirty-one billion, one hundred forty-four million, two hundred fourteen thousand, four hundred forty-four".