20112330111011 has 4 divisors (see below), whose sum is σ = 20113351113000. Its totient is φ = 20111309109024.

The previous prime is 20112330110989. The next prime is 20112330111017. The reversal of 20112330111011 is 11011103321102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112330111011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112330111017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510471446 + ... + 510510843.

It is an arithmetic number, because the mean of its divisors is an integer number (5028337778250).

Almost surely, 2^{20112330111011} is an apocalyptic number.

20112330111011 is a deficient number, since it is larger than the sum of its proper divisors (1021001989).

20112330111011 is a wasteful number, since it uses less digits than its factorization.

20112330111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021001988.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 20112330111011 its reverse (11011103321102), we get a palindrome (31123433432113).

The spelling of 20112330111011 in words is "twenty trillion, one hundred twelve billion, three hundred thirty million, one hundred eleven thousand, eleven".