20433012911 has 2 divisors, whose sum is σ = 20433012912. Its totient is φ = 20433012910.

The previous prime is 20433012893. The next prime is 20433012947. The reversal of 20433012911 is 11921033402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20433012911 - 2¹⁴ = 20432996527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20433012811) 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, 10216506455 + 10216506456.

It is an arithmetic number, because the mean of its divisors is an integer number (10216506456).

Almost surely, 2^20433012911 is an apocalyptic number.

20433012911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433012911 is an equidigital number, since it uses as much as digits as its factorization.

20433012911 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.

The spelling of 20433012911 in words is "twenty billion, four hundred thirty-three million, twelve thousand, nine hundred eleven".