31204111324223 has 4 divisors (see below), whose sum is σ = 31554719316720. Its totient is φ = 30853503331728.

The previous prime is 31204111324207. The next prime is 31204111324241. The reversal of 31204111324223 is 32242311140213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31204111324223 - 2⁴ = 31204111324207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204111324423) 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 3 ways as a sum of consecutive naturals, for example, 175303996115 + ... + 175303996292.

It is an arithmetic number, because the mean of its divisors is an integer number (7888679829180).

Almost surely, 2^{31204111324223} is an apocalyptic number.

31204111324223 is a deficient number, since it is larger than the sum of its proper divisors (350607992497).

31204111324223 is an equidigital number, since it uses as much as digits as its factorization.

31204111324223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350607992496.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31204111324223 its reverse (32242311140213), we get a palindrome (63446422464436).

The spelling of 31204111324223 in words is "thirty-one trillion, two hundred four billion, one hundred eleven million, three hundred twenty-four thousand, two hundred twenty-three".