31032223223 has 4 divisors (see below), whose sum is σ = 31033530840. Its totient is φ = 31030915608.

The previous prime is 31032223199. The next prime is 31032223241. The reversal of 31032223223 is 32232223013.

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 31032223223 - 2²² = 31028028919 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 (31032223253) 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, 617540 + ... + 665897.

It is an arithmetic number, because the mean of its divisors is an integer number (7758382710).

Almost surely, 2^31032223223 is an apocalyptic number.

31032223223 is a deficient number, since it is larger than the sum of its proper divisors (1307617).

31032223223 is a wasteful number, since it uses less digits than its factorization.

31032223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307616.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31032223223 its reverse (32232223013), we get a palindrome (63264446236).

The spelling of 31032223223 in words is "thirty-one billion, thirty-two million, two hundred twenty-three thousand, two hundred twenty-three".