102011100 has 36 divisors (see below), whose sum is σ = 295152984. Its totient is φ = 27202880.

The previous prime is 102011087. The next prime is 102011113. The reversal of 102011100 is 1110201.

It is an interprime number because it is at equal distance from previous prime (102011087) and next prime (102011113).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169719 + ... + 170318.

It is an arithmetic number, because the mean of its divisors is an integer number (8198694).

Almost surely, 2^102011100 is an apocalyptic number.

102011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011100 is an abundant number, since it is smaller than the sum of its proper divisors (193141884).

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

102011100 is a wasteful number, since it uses less digits than its factorization.

102011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340054 (or 340047 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 102011100 is about 10100.0544552987. The cubic root of 102011100 is about 467.2498208642.

Adding to 102011100 its reverse (1110201), we get a palindrome (103121301).

The spelling of 102011100 in words is "one hundred two million, eleven thousand, one hundred".