20130030133 has 4 divisors (see below), whose sum is σ = 20131653420. Its totient is φ = 20128406848.

The previous prime is 20130030127. The next prime is 20130030143. The reversal of 20130030133 is 33103003102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12130158769 + 7999871364 = 110137^2 + 89442^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130030133 - 2¹⁷ = 20129899061 is a prime.

It is a super-2 number, since 2×20130030133² (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 (20130030103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792898 + ... + 817891.

It is an arithmetic number, because the mean of its divisors is an integer number (5032913355).

Almost surely, 2^20130030133 is an apocalyptic number.

It is an amenable number.

20130030133 is a deficient number, since it is larger than the sum of its proper divisors (1623287).

20130030133 is a wasteful number, since it uses less digits than its factorization.

20130030133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623286.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20130030133 its reverse (33103003102), we get a palindrome (53233033235).

The spelling of 20130030133 in words is "twenty billion, one hundred thirty million, thirty thousand, one hundred thirty-three".