20130122133 has 16 divisors (see below), whose sum is σ = 32533531200. Its totient is φ = 12200073840.

The previous prime is 20130122069. The next prime is 20130122171. The reversal of 20130122133 is 33122103102.

It is not a de Polignac number, because 20130122133 - 2⁶ = 20130122069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130122333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33888798 + ... + 33889391.

It is an arithmetic number, because the mean of its divisors is an integer number (2033345700).

Almost surely, 2^20130122133 is an apocalyptic number.

It is an amenable number.

20130122133 is a deficient number, since it is larger than the sum of its proper divisors (12403409067).

20130122133 is a wasteful number, since it uses less digits than its factorization.

20130122133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67778209 (or 67778203 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20130122133 its reverse (33122103102), we get a palindrome (53252225235).

The spelling of 20130122133 in words is "twenty billion, one hundred thirty million, one hundred twenty-two thousand, one hundred thirty-three".