20133212311 has 8 divisors (see below), whose sum is σ = 21010067424. Its totient is φ = 19256482080.

The previous prime is 20133212299. The next prime is 20133212327. The reversal of 20133212311 is 11321233102.

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 20133212311 - 2⁹ = 20133211799 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 (20133212711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468801 + ... + 509941.

It is an arithmetic number, because the mean of its divisors is an integer number (2626258428).

Almost surely, 2^20133212311 is an apocalyptic number.

20133212311 is a deficient number, since it is larger than the sum of its proper divisors (876855113).

20133212311 is a wasteful number, since it uses less digits than its factorization.

20133212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62441.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20133212311 its reverse (11321233102), we get a palindrome (31454445413).

It can be divided in two parts, 20 and 133212311, that added together give a palindrome (133212331).

The spelling of 20133212311 in words is "twenty billion, one hundred thirty-three million, two hundred twelve thousand, three hundred eleven".