20012333133 has 16 divisors (see below), whose sum is σ = 29222706240. Its totient is φ = 12106546944.

The previous prime is 20012333111. The next prime is 20012333147. The reversal of 20012333133 is 33133321002.

It is not a de Polignac number, because 20012333133 - 2⁶ = 20012333069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012373133) 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, 4346316 + ... + 4350917.

It is an arithmetic number, because the mean of its divisors is an integer number (1826419140).

Almost surely, 2^20012333133 is an apocalyptic number.

It is an amenable number.

20012333133 is a deficient number, since it is larger than the sum of its proper divisors (9210373107).

20012333133 is a wasteful number, since it uses less digits than its factorization.

20012333133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697308.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20012333133 its reverse (33133321002), we get a palindrome (53145654135).

The spelling of 20012333133 in words is "twenty billion, twelve million, three hundred thirty-three thousand, one hundred thirty-three".