31123042044441 has 16 divisors (see below), whose sum is σ = 41700170717760. Its totient is φ = 20647332861120.

The previous prime is 31123042044361. The next prime is 31123042044443. The reversal of 31123042044441 is 14444024032113.

It is a happy number.

It is not a de Polignac number, because 31123042044441 - 2⁴² = 26724995533337 is a prime.

It is a super-2 number, since 2×31123042044441² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31123042044443) 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 15 ways as a sum of consecutive naturals, for example, 722851 + ... + 7922663.

It is an arithmetic number, because the mean of its divisors is an integer number (2606260669860).

Almost surely, 2^{31123042044441} is an apocalyptic number.

It is an amenable number.

31123042044441 is a deficient number, since it is larger than the sum of its proper divisors (10577128673319).

31123042044441 is a wasteful number, since it uses less digits than its factorization.

31123042044441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206856.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 31123042044441 its reverse (14444024032113), we get a palindrome (45567066076554).

The spelling of 31123042044441 in words is "thirty-one trillion, one hundred twenty-three billion, forty-two million, forty-four thousand, four hundred forty-one".