20133111101 has 8 divisors (see below), whose sum is σ = 21480142464. Its totient is φ = 18804160960.

The previous prime is 20133111091. The next prime is 20133111121. The reversal of 20133111101 is 10111133102.

It is a happy number.

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 20133111101 - 2³⁴ = 2953241917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133111121) 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, 4518005 + ... + 4522458.

It is an arithmetic number, because the mean of its divisors is an integer number (2685017808).

Almost surely, 2^20133111101 is an apocalyptic number.

It is an amenable number.

20133111101 is a deficient number, since it is larger than the sum of its proper divisors (1347031363).

20133111101 is a wasteful number, since it uses less digits than its factorization.

20133111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040611.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 20133111101 its reverse (10111133102), we get a palindrome (30244244203).

The spelling of 20133111101 in words is "twenty billion, one hundred thirty-three million, one hundred eleven thousand, one hundred one".