31223432541445 has 8 divisors (see below), whose sum is σ = 37533055134744. Its totient is φ = 24935455309824.

The previous prime is 31223432541407. The next prime is 31223432541461. The reversal of 31223432541445 is 54414523432213.

It can be written as a sum of positive squares in 4 ways, for example, as 5324768542116 + 25898663999329 = 2307546^2 + 5089073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31223432541445 - 2⁷ = 31223432541317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5411337244 + ... + 5411343013.

It is an arithmetic number, because the mean of its divisors is an integer number (4691631891843).

Almost surely, 2^{31223432541445} is an apocalyptic number.

It is an amenable number.

31223432541445 is a deficient number, since it is larger than the sum of its proper divisors (6309622593299).

31223432541445 is a wasteful number, since it uses less digits than its factorization.

31223432541445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822680839.

The product of its digits is 1382400, while the sum is 43.

Adding to 31223432541445 its reverse (54414523432213), we get a palindrome (85637955973658).

The spelling of 31223432541445 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, five hundred forty-one thousand, four hundred forty-five".