31123032300211 has 2 divisors, whose sum is σ = 31123032300212. Its totient is φ = 31123032300210.

The previous prime is 31123032300203. The next prime is 31123032300233. The reversal of 31123032300211 is 11200323032113.

It is an a-pointer prime, because the next prime (31123032300233) can be obtained adding 31123032300211 to its sum of digits (22).

It is a weak prime.

It is an emirp because it is prime and its reverse (11200323032113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31123032300211 - 2³ = 31123032300203 is a prime.

It is not a weakly prime, because it can be changed into another prime (31123032300281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561516150105 + 15561516150106.

It is an arithmetic number, because the mean of its divisors is an integer number (15561516150106).

Almost surely, 2^{31123032300211} is an apocalyptic number.

31123032300211 is a deficient number, since it is larger than the sum of its proper divisors (1).

31123032300211 is an equidigital number, since it uses as much as digits as its factorization.

31123032300211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31123032300211 its reverse (11200323032113), we get a palindrome (42323355332324).

The spelling of 31123032300211 in words is "thirty-one trillion, one hundred twenty-three billion, thirty-two million, three hundred thousand, two hundred eleven".