102112443 has 6 divisors (see below), whose sum is σ = 147495764. Its totient is φ = 68074956.

The previous prime is 102112429. The next prime is 102112447. The reversal of 102112443 is 344211201.

102112443 is a `hidden beast` number, since 10 + 211 + 2 + 443 = 666.

It is not a de Polignac number, because 102112443 - 2⁶ = 102112379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102112447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5672905 + ... + 5672922.

Almost surely, 2^102112443 is an apocalyptic number.

102112443 is a deficient number, since it is larger than the sum of its proper divisors (45383321).

102112443 is a wasteful number, since it uses less digits than its factorization.

102112443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345833 (or 11345830 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 102112443 is about 10105.0701630419. The cubic root of 102112443 is about 467.4044995428.

Adding to 102112443 its reverse (344211201), we get a palindrome (446323644).

The spelling of 102112443 in words is "one hundred two million, one hundred twelve thousand, four hundred forty-three".