102112131112 has 8 divisors (see below), whose sum is σ = 191460245850. Its totient is φ = 51056065552.

The previous prime is 102112131071. The next prime is 102112131119. The reversal of 102112131112 is 211131211201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 85665094596 + 16447036516 = 292686^2 + 128246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (102112131119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382008187 + ... + 6382008202.

Almost surely, 2^102112131112 is an apocalyptic number.

It is an amenable number.

102112131112 is a deficient number, since it is larger than the sum of its proper divisors (89348114738).

102112131112 is a wasteful number, since it uses less digits than its factorization.

102112131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12764016395 (or 12764016391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 102112131112 its reverse (211131211201), we get a palindrome (313243342313).

The spelling of 102112131112 in words is "one hundred two billion, one hundred twelve million, one hundred thirty-one thousand, one hundred twelve".