20303012311 has 8 divisors (see below), whose sum is σ = 21445343744. Its totient is φ = 19191143160.

The previous prime is 20303012299. The next prime is 20303012321. The reversal of 20303012311 is 11321030302.

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 20303012311 - 2¹¹ = 20303010263 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 (20303012321) 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, 7614201 + ... + 7616866.

It is an arithmetic number, because the mean of its divisors is an integer number (2680667968).

Almost surely, 2^20303012311 is an apocalyptic number.

20303012311 is a deficient number, since it is larger than the sum of its proper divisors (1142331433).

20303012311 is a wasteful number, since it uses less digits than its factorization.

20303012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15231141.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20303012311 its reverse (11321030302), we get a palindrome (31624042613).

The spelling of 20303012311 in words is "twenty billion, three hundred three million, twelve thousand, three hundred eleven".