20133331117 has 2 divisors, whose sum is σ = 20133331118. Its totient is φ = 20133331116.

The previous prime is 20133331103. The next prime is 20133331139. The reversal of 20133331117 is 71113333102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18077071401 + 2056259716 = 134451^2 + 45346^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133331117 - 2²⁷ = 19999113389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20133331091 and 20133331100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133331157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066665558 + 10066665559.

It is an arithmetic number, because the mean of its divisors is an integer number (10066665559).

Almost surely, 2^20133331117 is an apocalyptic number.

It is an amenable number.

20133331117 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133331117 is an equidigital number, since it uses as much as digits as its factorization.

20133331117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

Adding to 20133331117 its reverse (71113333102), we get a palindrome (91246664219).

The spelling of 20133331117 in words is "twenty billion, one hundred thirty-three million, three hundred thirty-one thousand, one hundred seventeen".