31032000111223 has 4 divisors (see below), whose sum is σ = 31032078515928. Its totient is φ = 31031921706520.

The previous prime is 31032000111191. The next prime is 31032000111247. The reversal of 31032000111223 is 32211100023013.

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 31032000111223 - 2⁵ = 31032000111191 is a prime.

It is a super-4 number, since 4×31032000111223⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31032000111223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032000111283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38605636 + ... + 39401257.

It is an arithmetic number, because the mean of its divisors is an integer number (7758019628982).

Almost surely, 2^{31032000111223} is an apocalyptic number.

31032000111223 is a deficient number, since it is larger than the sum of its proper divisors (78404705).

31032000111223 is an equidigital number, since it uses as much as digits as its factorization.

31032000111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78404704.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31032000111223 its reverse (32211100023013), we get a palindrome (63243100134236).

The spelling of 31032000111223 in words is "thirty-one trillion, thirty-two billion, one hundred eleven thousand, two hundred twenty-three".