102530123 has 2 divisors, whose sum is σ = 102530124. Its totient is φ = 102530122.

The previous prime is 102530117. The next prime is 102530201. The reversal of 102530123 is 321035201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102530123 - 2⁴ = 102530107 is a prime.

It is a super-2 number, since 2×102530123² = 21024852244790258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102580123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265061 + 51265062.

It is an arithmetic number, because the mean of its divisors is an integer number (51265062).

Almost surely, 2^102530123 is an apocalyptic number.

102530123 is a deficient number, since it is larger than the sum of its proper divisors (1).

102530123 is an equidigital number, since it uses as much as digits as its factorization.

102530123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 102530123 is about 10125.7159253062. The cubic root of 102530123 is about 468.0409219215.

Adding to 102530123 its reverse (321035201), we get a palindrome (423565324).

The spelling of 102530123 in words is "one hundred two million, five hundred thirty thousand, one hundred twenty-three".