20030013133 has 8 divisors (see below), whose sum is σ = 21571883928. Its totient is φ = 18488299584.

The previous prime is 20030013067. The next prime is 20030013163. The reversal of 20030013133 is 33131003002.

It can be written as a sum of positive squares in 4 ways, for example, as 209033764 + 19820979369 = 14458^2 + 140787^2 .

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 20030013133 - 2²¹ = 20027915981 is a prime.

It is a super-2 number, since 2×20030013133² (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 (20030013163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463935 + ... + 505267.

It is an arithmetic number, because the mean of its divisors is an integer number (2696485491).

Almost surely, 2^20030013133 is an apocalyptic number.

It is an amenable number.

20030013133 is a deficient number, since it is larger than the sum of its proper divisors (1541870795).

20030013133 is a wasteful number, since it uses less digits than its factorization.

20030013133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78623.

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

Adding to 20030013133 its reverse (33131003002), we get a palindrome (53161016135).

The spelling of 20030013133 in words is "twenty billion, thirty million, thirteen thousand, one hundred thirty-three".