20113130133 has 24 divisors (see below), whose sum is σ = 30088371456. Its totient is φ = 12938604000.

The previous prime is 20113130131. The next prime is 20113130161. The reversal of 20113130133 is 33103131102.

It is a happy number.

20113130133 is a `hidden beast` number, since 201 + 131 + 301 + 33 = 666.

It is not a de Polignac number, because 20113130133 - 2¹ = 20113130131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113130131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304818 + ... + 364883.

It is an arithmetic number, because the mean of its divisors is an integer number (1253682144).

Almost surely, 2^20113130133 is an apocalyptic number.

It is an amenable number.

20113130133 is a deficient number, since it is larger than the sum of its proper divisors (9975241323).

20113130133 is a wasteful number, since it uses less digits than its factorization.

20113130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669825 (or 669822 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20113130133 its reverse (33103131102), we get a palindrome (53216261235).

The spelling of 20113130133 in words is "twenty billion, one hundred thirteen million, one hundred thirty thousand, one hundred thirty-three".