21120312020303 has 2 divisors, whose sum is σ = 21120312020304. Its totient is φ = 21120312020302.

The previous prime is 21120312020273. The next prime is 21120312020333. The reversal of 21120312020303 is 30302021302112.

It is a balanced prime because it is at equal distance from previous prime (21120312020273) and next prime (21120312020333).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21120312020303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21120312020333) 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, 10560156010151 + 10560156010152.

It is an arithmetic number, because the mean of its divisors is an integer number (10560156010152).

Almost surely, 2^{21120312020303} is an apocalyptic number.

21120312020303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120312020303 is an equidigital number, since it uses as much as digits as its factorization.

21120312020303 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 20.

Adding to 21120312020303 its reverse (30302021302112), we get a palindrome (51422333322415).

The spelling of 21120312020303 in words is "twenty-one trillion, one hundred twenty billion, three hundred twelve million, twenty thousand, three hundred three".