20412113233 has 2 divisors, whose sum is σ = 20412113234. Its totient is φ = 20412113232.

The previous prime is 20412113219. The next prime is 20412113441. The reversal of 20412113233 is 33231121402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20144692624 + 267420609 = 141932^2 + 16353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20412113233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20412113933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206056616 + 10206056617.

It is an arithmetic number, because the mean of its divisors is an integer number (10206056617).

Almost surely, 2^20412113233 is an apocalyptic number.

It is an amenable number.

20412113233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412113233 is an equidigital number, since it uses as much as digits as its factorization.

20412113233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20412113233 its reverse (33231121402), we get a palindrome (53643234635).

The spelling of 20412113233 in words is "twenty billion, four hundred twelve million, one hundred thirteen thousand, two hundred thirty-three".