102123103 has 4 divisors (see below), whose sum is σ = 104050008. Its totient is φ = 100196200.

The previous prime is 102123101. The next prime is 102123107. The reversal of 102123103 is 301321201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301321201 = 59 ⋅5107139.

It is a cyclic number.

It is not a de Polignac number, because 102123103 - 2¹ = 102123101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123101) 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, 963373 + ... + 963478.

It is an arithmetic number, because the mean of its divisors is an integer number (26012502).

Almost surely, 2^102123103 is an apocalyptic number.

102123103 is a deficient number, since it is larger than the sum of its proper divisors (1926905).

102123103 is an equidigital number, since it uses as much as digits as its factorization.

102123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926904.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102123103 is about 10105.5976072670. The cubic root of 102123103 is about 467.4207638309.

Adding to 102123103 its reverse (301321201), we get a palindrome (403444304).

The spelling of 102123103 in words is "one hundred two million, one hundred twenty-three thousand, one hundred three".