20020102133 has 8 divisors (see below), whose sum is σ = 20241360216. Its totient is φ = 19799296000.

The previous prime is 20020102127. The next prime is 20020102169. The reversal of 20020102133 is 33120102002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10353673009 + 9666429124 = 101753^2 + 98318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020102133 - 2⁸ = 20020101877 is a prime.

It is a super-2 number, since 2×20020102133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020108133) 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 in 7 ways as a sum of consecutive naturals, for example, 23516 + ... + 201477.

It is an arithmetic number, because the mean of its divisors is an integer number (2530170027).

Almost surely, 2^20020102133 is an apocalyptic number.

It is an amenable number.

20020102133 is a deficient number, since it is larger than the sum of its proper divisors (221258083).

20020102133 is a wasteful number, since it uses less digits than its factorization.

20020102133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225975.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20020102133 its reverse (33120102002), we get a palindrome (53140204135).

The spelling of 20020102133 in words is "twenty billion, twenty million, one hundred two thousand, one hundred thirty-three".