20004133011 has 4 divisors (see below), whose sum is σ = 26672177352. Its totient is φ = 13336088672.

The previous prime is 20004132989. The next prime is 20004133043. The reversal of 20004133011 is 11033140002.

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

It is a cyclic number.

It is not a de Polignac number, because 20004133011 - 2⁵ = 20004132979 is a prime.

It is a super-2 number, since 2×20004133011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20004133081) 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, 3334022166 + ... + 3334022171.

It is an arithmetic number, because the mean of its divisors is an integer number (6668044338).

Almost surely, 2^20004133011 is an apocalyptic number.

20004133011 is a deficient number, since it is larger than the sum of its proper divisors (6668044341).

20004133011 is an equidigital number, since it uses as much as digits as its factorization.

20004133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668044340.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20004133011 its reverse (11033140002), we get a palindrome (31037273013).

The spelling of 20004133011 in words is "twenty billion, four million, one hundred thirty-three thousand, eleven".