102143443 has 4 divisors (see below), whose sum is σ = 103668040. Its totient is φ = 100618848.

The previous prime is 102143413. The next prime is 102143453. The reversal of 102143443 is 344341201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344341201 = 2357 ⋅146093.

It is a cyclic number.

It is not a de Polignac number, because 102143443 - 2²⁵ = 68589011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102143413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762198 + ... + 762331.

It is an arithmetic number, because the mean of its divisors is an integer number (25917010).

Almost surely, 2^102143443 is an apocalyptic number.

102143443 is a deficient number, since it is larger than the sum of its proper divisors (1524597).

102143443 is an equidigital number, since it uses as much as digits as its factorization.

102143443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524596.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 102143443 is about 10106.6039301043. The cubic root of 102143443 is about 467.4517940514.

Adding to 102143443 its reverse (344341201), we get a palindrome (446484644).

The spelling of 102143443 in words is "one hundred two million, one hundred forty-three thousand, four hundred forty-three".