20110110102 has 24 divisors (see below), whose sum is σ = 43589982384. Its totient is φ = 6700588944.

The previous prime is 20110110047. The next prime is 20110110127. The reversal of 20110110102 is 20101101102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186933 + ... + 274160.

It is an arithmetic number, because the mean of its divisors is an integer number (1816249266).

Almost surely, 2^20110110102 is an apocalyptic number.

20110110102 is an abundant number, since it is smaller than the sum of its proper divisors (23479872282).

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

20110110102 is a wasteful number, since it uses less digits than its factorization.

20110110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463524 (or 463521 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20110110102 its reverse (20101101102), we get a palindrome (40211211204).

The spelling of 20110110102 in words is "twenty billion, one hundred ten million, one hundred ten thousand, one hundred two".