102425123 has 4 divisors (see below), whose sum is σ = 102853920. Its totient is φ = 101996328.

The previous prime is 102425117. The next prime is 102425131. The reversal of 102425123 is 321524201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321524201 = 43 ⋅7477307.

It is a cyclic number.

It is not a de Polignac number, because 102425123 - 2⁴ = 102425107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102425095 and 102425104.

It is not an unprimeable number, because it can be changed into a prime (102425423) 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, 214040 + ... + 214517.

It is an arithmetic number, because the mean of its divisors is an integer number (25713480).

Almost surely, 2^102425123 is an apocalyptic number.

102425123 is a deficient number, since it is larger than the sum of its proper divisors (428797).

102425123 is an equidigital number, since it uses as much as digits as its factorization.

102425123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428796.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102425123 is about 10120.5297786233. The cubic root of 102425123 is about 467.8810954530.

Adding to 102425123 its reverse (321524201), we get a palindrome (423949324).

The spelling of 102425123 in words is "one hundred two million, four hundred twenty-five thousand, one hundred twenty-three".