102342123 has 28 divisors (see below), whose sum is σ = 165261600. Its totient is φ = 62973936.

The previous prime is 102342103. The next prime is 102342127. The reversal of 102342123 is 321243201.

It is not a de Polignac number, because 102342123 - 2⁸ = 102341867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102342096 and 102342105.

It is not an unprimeable number, because it can be changed into a prime (102342127) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4078 + ... + 14876.

It is an arithmetic number, because the mean of its divisors is an integer number (5902200).

Almost surely, 2^102342123 is an apocalyptic number.

102342123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102342123 is a deficient number, since it is larger than the sum of its proper divisors (62919477).

102342123 is an equidigital number, since it uses as much as digits as its factorization.

102342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10830 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102342123 is about 10116.4283717130. The cubic root of 102342123 is about 467.7546791200.

Adding to 102342123 its reverse (321243201), we get a palindrome (423585324).

It can be divided in two parts, 102 and 342123, that added together give a square (342225 = 585²).

The spelling of 102342123 in words is "one hundred two million, three hundred forty-two thousand, one hundred twenty-three".