20130211008 has 84 divisors (see below), whose sum is σ = 57719171328. Its totient is φ = 6707796480.

The previous prime is 20130211007. The next prime is 20130211019. The reversal of 20130211008 is 80011203102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20130211007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3206913 + ... + 3213183.

It is an arithmetic number, because the mean of its divisors is an integer number (687132992).

Almost surely, 2^20130211008 is an apocalyptic number.

It is an amenable number.

20130211008 is an abundant number, since it is smaller than the sum of its proper divisors (37588960320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130211008 is a wasteful number, since it uses less digits than its factorization.

20130211008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11862 (or 11849 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The spelling of 20130211008 in words is "twenty billion, one hundred thirty million, two hundred eleven thousand, eight".