20011112033 has 16 divisors (see below), whose sum is σ = 22631311872. Its totient is φ = 17529456000.

The previous prime is 20011111987. The next prime is 20011112041. The reversal of 20011112033 is 33021111002.

It is a cyclic number.

It is not a de Polignac number, because 20011112033 - 2¹² = 20011107937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011111999 and 20011112017.

It is not an unprimeable number, because it can be changed into a prime (20011112633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46478 + ... + 205383.

It is an arithmetic number, because the mean of its divisors is an integer number (1414456992).

Almost surely, 2^20011112033 is an apocalyptic number.

It is an amenable number.

20011112033 is a deficient number, since it is larger than the sum of its proper divisors (2620199839).

20011112033 is a wasteful number, since it uses less digits than its factorization.

20011112033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252136.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20011112033 its reverse (33021111002), we get a palindrome (53032223035).

The spelling of 20011112033 in words is "twenty billion, eleven million, one hundred twelve thousand, thirty-three".