20011113210 has 64 divisors (see below), whose sum is σ = 52406331264. Its totient is φ = 4849920000.

The previous prime is 20011113121. The next prime is 20011113251. The reversal of 20011113210 is 1231111002.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2218710 + ... + 2227710.

It is an arithmetic number, because the mean of its divisors is an integer number (818848926).

Almost surely, 2^20011113210 is an apocalyptic number.

20011113210 is an abundant number, since it is smaller than the sum of its proper divisors (32395218054).

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

20011113210 is a wasteful number, since it uses less digits than its factorization.

20011113210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15759.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20011113210 its reverse (1231111002), we get a palindrome (21242224212).

The spelling of 20011113210 in words is "twenty billion, eleven million, one hundred thirteen thousand, two hundred ten".