20131330111 has 8 divisors (see below), whose sum is σ = 20680808400. Its totient is φ = 19582135488.

The previous prime is 20131330099. The next prime is 20131330133. The reversal of 20131330111 is 11103313102.

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 20131330111 - 2²⁵ = 20097775679 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 (20131330711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77115 + ... + 214963.

It is an arithmetic number, because the mean of its divisors is an integer number (2585101050).

Almost surely, 2^20131330111 is an apocalyptic number.

20131330111 is a deficient number, since it is larger than the sum of its proper divisors (549478289).

20131330111 is a wasteful number, since it uses less digits than its factorization.

20131330111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141833.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20131330111 its reverse (11103313102), we get a palindrome (31234643213).

The spelling of 20131330111 in words is "twenty billion, one hundred thirty-one million, three hundred thirty thousand, one hundred eleven".