20011230331133 has 16 divisors (see below), whose sum is σ = 22617672819840. Its totient is φ = 17591523264000.

The previous prime is 20011230331121. The next prime is 20011230331159. The reversal of 20011230331133 is 33113303211002.

It is a cyclic number.

It is not a de Polignac number, because 20011230331133 - 2⁴ = 20011230331117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011230331099 and 20011230331108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011230331193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436274768 + ... + 436320633.

It is an arithmetic number, because the mean of its divisors is an integer number (1413604551240).

Almost surely, 2^{20011230331133} is an apocalyptic number.

It is an amenable number.

20011230331133 is a deficient number, since it is larger than the sum of its proper divisors (2606442488707).

20011230331133 is a wasteful number, since it uses less digits than its factorization.

20011230331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872595508.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20011230331133 its reverse (33113303211002), we get a palindrome (53124533542135).

The spelling of 20011230331133 in words is "twenty trillion, eleven billion, two hundred thirty million, three hundred thirty-one thousand, one hundred thirty-three".