20133108617 has 2 divisors, whose sum is σ = 20133108618. Its totient is φ = 20133108616.

The previous prime is 20133108607. The next prime is 20133108629. The reversal of 20133108617 is 71680133102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20119720336 + 13388281 = 141844^2 + 3659^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133108617 - 2⁴ = 20133108601 is a prime.

It is a super-3 number, since 3×20133108617³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20133108607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066554308 + 10066554309.

It is an arithmetic number, because the mean of its divisors is an integer number (10066554309).

Almost surely, 2^20133108617 is an apocalyptic number.

It is an amenable number.

20133108617 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133108617 is an equidigital number, since it uses as much as digits as its factorization.

20133108617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 20133108617 in words is "twenty billion, one hundred thirty-three million, one hundred eight thousand, six hundred seventeen".