109902090100 has 72 divisors (see below), whose sum is σ = 260220282336. Its totient is φ = 39956400000.

The previous prime is 109902090097. The next prime is 109902090107. The reversal of 109902090100 is 1090209901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109902090107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10886055 + ... + 10896145.

It is an arithmetic number, because the mean of its divisors is an integer number (3614170588).

Almost surely, 2^109902090100 is an apocalyptic number.

109902090100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109902090100 is an abundant number, since it is smaller than the sum of its proper divisors (150318192236).

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

109902090100 is a wasteful number, since it uses less digits than its factorization.

109902090100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20017 (or 20010 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

It can be divided in two parts, 109 and 902090100, that added together give a palindrome (902090209).

The spelling of 109902090100 in words is "one hundred nine billion, nine hundred two million, ninety thousand, one hundred".