20020111102 has 16 divisors (see below), whose sum is σ = 31614359040. Its totient is φ = 9482113368.

The previous prime is 20020111091. The next prime is 20020111231. The reversal of 20020111102 is 20111102002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370963 + ... + 421489.

It is an arithmetic number, because the mean of its divisors is an integer number (1975897440).

Almost surely, 2^20020111102 is an apocalyptic number.

20020111102 is a deficient number, since it is larger than the sum of its proper divisors (11594247938).

20020111102 is a wasteful number, since it uses less digits than its factorization.

20020111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60975.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20020111102 its reverse (20111102002), we get a palindrome (40131213104).

The spelling of 20020111102 in words is "twenty billion, twenty million, one hundred eleven thousand, one hundred two".