31321332323 has 2 divisors, whose sum is σ = 31321332324. Its totient is φ = 31321332322.

The previous prime is 31321332283. The next prime is 31321332349. The reversal of 31321332323 is 32323312313.

It is a happy number.

It is an a-pointer prime, because the next prime (31321332349) can be obtained adding 31321332323 to its sum of digits (26).

It is a strong prime.

It is an emirp because it is prime and its reverse (32323312313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31321332323 - 2³⁴ = 14141463139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31321332292 and 31321332301.

It is not a weakly prime, because it can be changed into another prime (31321332223) 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 as a sum of consecutive naturals, namely, 15660666161 + 15660666162.

It is an arithmetic number, because the mean of its divisors is an integer number (15660666162).

Almost surely, 2^31321332323 is an apocalyptic number.

31321332323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321332323 is an equidigital number, since it uses as much as digits as its factorization.

31321332323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 26.

Adding to 31321332323 its reverse (32323312313), we get a palindrome (63644644636).

The spelling of 31321332323 in words is "thirty-one billion, three hundred twenty-one million, three hundred thirty-two thousand, three hundred twenty-three".