20331013111 has 8 divisors (see below), whose sum is σ = 20536336080. Its totient is φ = 20126699712.

The previous prime is 20331013097. The next prime is 20331013127. The reversal of 20331013111 is 11131013302.

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 20331013111 - 2¹³ = 20331004919 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 (20331013411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211881 + ... + 292498.

It is an arithmetic number, because the mean of its divisors is an integer number (2567042010).

Almost surely, 2^20331013111 is an apocalyptic number.

20331013111 is a deficient number, since it is larger than the sum of its proper divisors (205322969).

20331013111 is a wasteful number, since it uses less digits than its factorization.

20331013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504785.

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

Adding to 20331013111 its reverse (11131013302), we get a palindrome (31462026413).

The spelling of 20331013111 in words is "twenty billion, three hundred thirty-one million, thirteen thousand, one hundred eleven".