101220320233 has 2 divisors, whose sum is σ = 101220320234. Its totient is φ = 101220320232.

The previous prime is 101220320221. The next prime is 101220320237. The reversal of 101220320233 is 332023022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69233713129 + 31986607104 = 263123^2 + 178848^2 .

It is an emirp because it is prime and its reverse (332023022101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101220320233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101220320233.

It is not a weakly prime, because it can be changed into another prime (101220320237) 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, 50610160116 + 50610160117.

It is an arithmetic number, because the mean of its divisors is an integer number (50610160117).

Almost surely, 2^101220320233 is an apocalyptic number.

It is an amenable number.

101220320233 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220320233 is an equidigital number, since it uses as much as digits as its factorization.

101220320233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 101220320233 its reverse (332023022101), we get a palindrome (433243342334).

The spelling of 101220320233 in words is "one hundred one billion, two hundred twenty million, three hundred twenty thousand, two hundred thirty-three".