20012223311 has 16 divisors (see below), whose sum is σ = 20336189280. Its totient is φ = 19691320320.

The previous prime is 20012223289. The next prime is 20012223409. The reversal of 20012223311 is 11332221002.

It is a cyclic number.

It is not a de Polignac number, because 20012223311 - 2¹⁰ = 20012222287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012223311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012223811) 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, 12004100 + ... + 12005766.

It is an arithmetic number, because the mean of its divisors is an integer number (1271011830).

Almost surely, 2^20012223311 is an apocalyptic number.

20012223311 is a deficient number, since it is larger than the sum of its proper divisors (323965969).

20012223311 is a wasteful number, since it uses less digits than its factorization.

20012223311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20012223311 its reverse (11332221002), we get a palindrome (31344444313).

The spelling of 20012223311 in words is "twenty billion, twelve million, two hundred twenty-three thousand, three hundred eleven".