20133111411 has 20 divisors (see below), whose sum is σ = 34371873712. Its totient is φ = 11504634768.

The previous prime is 20133111391. The next prime is 20133111413. The reversal of 20133111411 is 11411133102.

It is a happy number.

It is not a de Polignac number, because 20133111411 - 2⁶ = 20133111347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133111413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17753500 + ... + 17754633.

Almost surely, 2^20133111411 is an apocalyptic number.

20133111411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20133111411 is a deficient number, since it is larger than the sum of its proper divisors (14238762301).

20133111411 is an equidigital number, since it uses as much as digits as its factorization.

20133111411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35508152 (or 35508143 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20133111411 its reverse (11411133102), we get a palindrome (31544244513).

The spelling of 20133111411 in words is "twenty billion, one hundred thirty-three million, one hundred eleven thousand, four hundred eleven".