20012020133 has 16 divisors (see below), whose sum is σ = 23592557184. Its totient is φ = 16615990080.

The previous prime is 20012020121. The next prime is 20012020213. The reversal of 20012020133 is 33102021002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20012020133 - 2⁸ = 20012019877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012020103) 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 15 ways as a sum of consecutive naturals, for example, 111398 + ... + 228983.

It is an arithmetic number, because the mean of its divisors is an integer number (1474534824).

Almost surely, 2^20012020133 is an apocalyptic number.

It is an amenable number.

20012020133 is a deficient number, since it is larger than the sum of its proper divisors (3580537051).

20012020133 is a wasteful number, since it uses less digits than its factorization.

20012020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340652.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20012020133 its reverse (33102021002), we get a palindrome (53114041135).

The spelling of 20012020133 in words is "twenty billion, twelve million, twenty thousand, one hundred thirty-three".