102111132 has 12 divisors (see below), whose sum is σ = 238259336. Its totient is φ = 34037040.

The previous prime is 102111103. The next prime is 102111151. The reversal of 102111132 is 231111201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8509261 = 102111132 / (1 + 0 + 2 + 1 + 1 + 1 + 1 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254619 + ... + 4254642.

Almost surely, 2^102111132 is an apocalyptic number.

102111132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102111132 is an abundant number, since it is smaller than the sum of its proper divisors (136148204).

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

102111132 is a wasteful number, since it uses less digits than its factorization.

102111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509268 (or 8509266 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 102111132 is about 10105.0052944073. The cubic root of 102111132 is about 467.4024992318.

Adding to 102111132 its reverse (231111201), we get a palindrome (333222333).

The spelling of 102111132 in words is "one hundred two million, one hundred eleven thousand, one hundred thirty-two".