20412340133 has 2 divisors, whose sum is σ = 20412340134. Its totient is φ = 20412340132.

The previous prime is 20412340121. The next prime is 20412340183. The reversal of 20412340133 is 33104321402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19154006404 + 1258333729 = 138398^2 + 35473^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412340133 - 2¹⁰ = 20412339109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20412340099 and 20412340108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20412340103) 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, 10206170066 + 10206170067.

It is an arithmetic number, because the mean of its divisors is an integer number (10206170067).

Almost surely, 2^20412340133 is an apocalyptic number.

It is an amenable number.

20412340133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412340133 is an equidigital number, since it uses as much as digits as its factorization.

20412340133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20412340133 its reverse (33104321402), we get a palindrome (53516661535).

The spelling of 20412340133 in words is "twenty billion, four hundred twelve million, three hundred forty thousand, one hundred thirty-three".