20133011218 has 8 divisors (see below), whose sum is σ = 30200142960. Its totient is φ = 10066296900.

The previous prime is 20133011207. The next prime is 20133011219. The reversal of 20133011218 is 81211033102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20133011218² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20133011219) 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, 84793 + ... + 217843.

It is an arithmetic number, because the mean of its divisors is an integer number (3775017870).

Almost surely, 2^20133011218 is an apocalyptic number.

20133011218 is a deficient number, since it is larger than the sum of its proper divisors (10067131742).

20133011218 is a wasteful number, since it uses less digits than its factorization.

20133011218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208712.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 20133011218 in words is "twenty billion, one hundred thirty-three million, eleven thousand, two hundred eighteen".