31223002301 has 2 divisors, whose sum is σ = 31223002302. Its totient is φ = 31223002300.

The previous prime is 31223002289. The next prime is 31223002361. The reversal of 31223002301 is 10320032213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16798752100 + 14424250201 = 129610^2 + 120101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31223002301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31223002301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31223002361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611501150 + 15611501151.

It is an arithmetic number, because the mean of its divisors is an integer number (15611501151).

Almost surely, 2^31223002301 is an apocalyptic number.

It is an amenable number.

31223002301 is a deficient number, since it is larger than the sum of its proper divisors (1).

31223002301 is an equidigital number, since it uses as much as digits as its factorization.

31223002301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31223002301 its reverse (10320032213), we get a palindrome (41543034514).

The spelling of 31223002301 in words is "thirty-one billion, two hundred twenty-three million, two thousand, three hundred one".