31130323223 has 8 divisors (see below), whose sum is σ = 31744239360. Its totient is φ = 30519283320.

The previous prime is 31130323201. The next prime is 31130323249. The reversal of 31130323223 is 32232303113.

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 31130323223 - 2¹² = 31130319127 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 (31130323283) 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, 697193 + ... + 740498.

It is an arithmetic number, because the mean of its divisors is an integer number (3968029920).

Almost surely, 2^31130323223 is an apocalyptic number.

31130323223 is a deficient number, since it is larger than the sum of its proper divisors (613916137).

31130323223 is a wasteful number, since it uses less digits than its factorization.

31130323223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438117.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31130323223 its reverse (32232303113), we get a palindrome (63362626336).

The spelling of 31130323223 in words is "thirty-one billion, one hundred thirty million, three hundred twenty-three thousand, two hundred twenty-three".