31324311223 has 8 divisors (see below), whose sum is σ = 31554400640. Its totient is φ = 31094289720.

The previous prime is 31324311203. The next prime is 31324311247. The reversal of 31324311223 is 32211342313.

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 31324311223 - 2⁹ = 31324310711 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 (31324311203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256308 + ... + 1280998.

It is an arithmetic number, because the mean of its divisors is an integer number (3944300080).

Almost surely, 2^31324311223 is an apocalyptic number.

31324311223 is a deficient number, since it is larger than the sum of its proper divisors (230089417).

31324311223 is a wasteful number, since it uses less digits than its factorization.

31324311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33957.

The product of its digits is 2592, while the sum is 25.

Adding to 31324311223 its reverse (32211342313), we get a palindrome (63535653536).

The spelling of 31324311223 in words is "thirty-one billion, three hundred twenty-four million, three hundred eleven thousand, two hundred twenty-three".