31323144344444 has 6 divisors (see below), whose sum is σ = 54815502602784. Its totient is φ = 15661572172220.

The previous prime is 31323144344383. The next prime is 31323144344477. The reversal of 31323144344444 is 44444344132313.

It is a super-2 number, since 2×31323144344444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31323144344395 and 31323144344404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915393043052 + ... + 3915393043059.

It is an arithmetic number, because the mean of its divisors is an integer number (9135917100464).

Almost surely, 2^{31323144344444} is an apocalyptic number.

It is an amenable number.

31323144344444 is a deficient number, since it is larger than the sum of its proper divisors (23492358258340).

31323144344444 is a wasteful number, since it uses less digits than its factorization.

31323144344444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830786086115 (or 7830786086113 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 44.

Adding to 31323144344444 its reverse (44444344132313), we get a palindrome (75767488476757).

The spelling of 31323144344444 in words is "thirty-one trillion, three hundred twenty-three billion, one hundred forty-four million, three hundred forty-four thousand, four hundred forty-four".