20031211303 has 2 divisors, whose sum is σ = 20031211304. Its totient is φ = 20031211302.

The previous prime is 20031211283. The next prime is 20031211307. The reversal of 20031211303 is 30311213002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20031211303 - 2⁹ = 20031210791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20031211307) 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, 10015605651 + 10015605652.

It is an arithmetic number, because the mean of its divisors is an integer number (10015605652).

Almost surely, 2^20031211303 is an apocalyptic number.

20031211303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20031211303 is an equidigital number, since it uses as much as digits as its factorization.

20031211303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20031211303 its reverse (30311213002), we get a palindrome (50342424305).

The spelling of 20031211303 in words is "twenty billion, thirty-one million, two hundred eleven thousand, three hundred three".