20012131133 has 8 divisors (see below), whose sum is σ = 20555006208. Its totient is φ = 19469361744.

The previous prime is 20012131129. The next prime is 20012131171. The reversal of 20012131133 is 33113121002.

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 20012131133 - 2² = 20012131129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012131033) 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, 494960 + ... + 533862.

It is an arithmetic number, because the mean of its divisors is an integer number (2569375776).

Almost surely, 2^20012131133 is an apocalyptic number.

It is an amenable number.

20012131133 is a deficient number, since it is larger than the sum of its proper divisors (542875075).

20012131133 is a wasteful number, since it uses less digits than its factorization.

20012131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52843.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20012131133 its reverse (33113121002), we get a palindrome (53125252135).

The spelling of 20012131133 in words is "twenty billion, twelve million, one hundred thirty-one thousand, one hundred thirty-three".