20111002010 has 32 divisors (see below), whose sum is σ = 41569156800. Its totient is φ = 6928191360.

The previous prime is 20111001971. The next prime is 20111002027. The reversal of 20111002010 is 1020011102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809155 + ... + 4813334.

It is an arithmetic number, because the mean of its divisors is an integer number (1299036150).

Almost surely, 2^20111002010 is an apocalyptic number.

20111002010 is an abundant number, since it is smaller than the sum of its proper divisors (21458154790).

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

20111002010 is a wasteful number, since it uses less digits than its factorization.

20111002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622526.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20111002010 its reverse (1020011102), we get a palindrome (21131013112).

The spelling of 20111002010 in words is "twenty billion, one hundred eleven million, two thousand, ten".