102412243 has 4 divisors (see below), whose sum is σ = 102682840. Its totient is φ = 102141648.

The previous prime is 102412241. The next prime is 102412279. The reversal of 102412243 is 342214201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342214201 = 7 ⋅48887743.

It is a cyclic number.

It is not a de Polignac number, because 102412243 - 2¹ = 102412241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102412243.

It is not an unprimeable number, because it can be changed into a prime (102412241) 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, 134730 + ... + 135487.

It is an arithmetic number, because the mean of its divisors is an integer number (25670710).

Almost surely, 2^102412243 is an apocalyptic number.

102412243 is a deficient number, since it is larger than the sum of its proper divisors (270597).

102412243 is an equidigital number, since it uses as much as digits as its factorization.

102412243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270596.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 102412243 is about 10119.8934282926. The cubic root of 102412243 is about 467.8614825529.

Adding to 102412243 its reverse (342214201), we get a palindrome (444626444).

The spelling of 102412243 in words is "one hundred two million, four hundred twelve thousand, two hundred forty-three".