20303041331 has 2 divisors, whose sum is σ = 20303041332. Its totient is φ = 20303041330.

The previous prime is 20303041273. The next prime is 20303041351. The reversal of 20303041331 is 13314030302.

It is an a-pointer prime, because the next prime (20303041351) can be obtained adding 20303041331 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20303041331 is a prime.

It is a super-2 number, since 2×20303041331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20303041351) 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, 10151520665 + 10151520666.

It is an arithmetic number, because the mean of its divisors is an integer number (10151520666).

Almost surely, 2^20303041331 is an apocalyptic number.

20303041331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303041331 is an equidigital number, since it uses as much as digits as its factorization.

20303041331 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 20.

Adding to 20303041331 its reverse (13314030302), we get a palindrome (33617071633).

The spelling of 20303041331 in words is "twenty billion, three hundred three million, forty-one thousand, three hundred thirty-one".