20011102 has 8 divisors (see below), whose sum is σ = 31051800. Its totient is φ = 9660504.

The previous prime is 20011099. The next prime is 20011139. The reversal of 20011102 is 20111002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172452 + ... + 172567.

It is an arithmetic number, because the mean of its divisors is an integer number (3881475).

Almost surely, 2^20011102 is an apocalyptic number.

20011102 is a deficient number, since it is larger than the sum of its proper divisors (11040698).

20011102 is a wasteful number, since it uses less digits than its factorization.

20011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345050.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 20011102 is about 4473.3770241284. The cubic root of 20011102 is about 271.4919781429.

Adding to 20011102 its reverse (20111002), we get a palindrome (40122104).

The spelling of 20011102 in words is "twenty million, eleven thousand, one hundred two".