102440023 has 8 divisors (see below), whose sum is σ = 117135648. Its totient is φ = 87759744.

The previous prime is 102440021. The next prime is 102440069. The reversal of 102440023 is 320044201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102440023 - 2¹ = 102440021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102439979 and 102440006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102440021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23115 + ... + 27187.

It is an arithmetic number, because the mean of its divisors is an integer number (14641956).

Almost surely, 2^102440023 is an apocalyptic number.

102440023 is a deficient number, since it is larger than the sum of its proper divisors (14695625).

102440023 is an equidigital number, since it uses as much as digits as its factorization.

102440023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102440023 is about 10121.2658793256. The cubic root of 102440023 is about 467.9037822383.

Adding to 102440023 its reverse (320044201), we get a palindrome (422484224).

The spelling of 102440023 in words is "one hundred two million, four hundred forty thousand, twenty-three".