20033411291 has 2 divisors, whose sum is σ = 20033411292. Its totient is φ = 20033411290.

The previous prime is 20033411287. The next prime is 20033411347. The reversal of 20033411291 is 19211433002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20033411291 - 2² = 20033411287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20033411291.

It is not a weakly prime, because it can be changed into another prime (20033411891) 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, 10016705645 + 10016705646.

It is an arithmetic number, because the mean of its divisors is an integer number (10016705646).

Almost surely, 2^20033411291 is an apocalyptic number.

20033411291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033411291 is an equidigital number, since it uses as much as digits as its factorization.

20033411291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 20033411291 its reverse (19211433002), we get a palindrome (39244844293).

The spelling of 20033411291 in words is "twenty billion, thirty-three million, four hundred eleven thousand, two hundred ninety-one".