20102112132 has 12 divisors (see below), whose sum is σ = 46904928336. Its totient is φ = 6700704040.

The previous prime is 20102112131. The next prime is 20102112139. The reversal of 20102112132 is 23121120102.

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

It is not an unprimeable number, because it can be changed into a prime (20102112131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837587994 + ... + 837588017.

It is an arithmetic number, because the mean of its divisors is an integer number (3908744028).

Almost surely, 2^20102112132 is an apocalyptic number.

It is an amenable number.

20102112132 is an abundant number, since it is smaller than the sum of its proper divisors (26802816204).

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

20102112132 is a wasteful number, since it uses less digits than its factorization.

20102112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675176018 (or 1675176016 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20102112132 its reverse (23121120102), we get a palindrome (43223232234).

The spelling of 20102112132 in words is "twenty billion, one hundred two million, one hundred twelve thousand, one hundred thirty-two".