20312233311 has 8 divisors (see below), whose sum is σ = 27199214640. Its totient is φ = 13483370432.

The previous prime is 20312233241. The next prime is 20312233327. The reversal of 20312233311 is 11333221302.

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 20312233311 - 2¹¹ = 20312231263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312233351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14528796 + ... + 14530193.

It is an arithmetic number, because the mean of its divisors is an integer number (3399901830).

Almost surely, 2^20312233311 is an apocalyptic number.

20312233311 is a deficient number, since it is larger than the sum of its proper divisors (6886981329).

20312233311 is a wasteful number, since it uses less digits than its factorization.

20312233311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29059225.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20312233311 its reverse (11333221302), we get a palindrome (31645454613).

The spelling of 20312233311 in words is "twenty billion, three hundred twelve million, two hundred thirty-three thousand, three hundred eleven".