31105445223 has 8 divisors (see below), whose sum is σ = 41705625600. Its totient is φ = 20621114168.

The previous prime is 31105445179. The next prime is 31105445237. The reversal of 31105445223 is 32254450113.

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 31105445223 - 2¹⁸ = 31105183079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31105445263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28961703 + ... + 28962776.

It is an arithmetic number, because the mean of its divisors is an integer number (5213203200).

Almost surely, 2^31105445223 is an apocalyptic number.

31105445223 is a deficient number, since it is larger than the sum of its proper divisors (10600180377).

31105445223 is a wasteful number, since it uses less digits than its factorization.

31105445223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57924661.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 31105445223 its reverse (32254450113), we get a palindrome (63359895336).

The spelling of 31105445223 in words is "thirty-one billion, one hundred five million, four hundred forty-five thousand, two hundred twenty-three".