102523423 has 4 divisors (see below), whose sum is σ = 103009528. Its totient is φ = 102037320.

The previous prime is 102523367. The next prime is 102523427. The reversal of 102523423 is 324325201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324325201 = 17 ⋅19077953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102523423 is a prime.

It is a super-2 number, since 2×102523423² = 21022104527273858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102523394 and 102523403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102523427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242736 + ... + 243157.

It is an arithmetic number, because the mean of its divisors is an integer number (25752382).

Almost surely, 2^102523423 is an apocalyptic number.

102523423 is a deficient number, since it is larger than the sum of its proper divisors (486105).

102523423 is an equidigital number, since it uses as much as digits as its factorization.

102523423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486104.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 102523423 is about 10125.3850790970. The cubic root of 102523423 is about 468.0307267307.

Adding to 102523423 its reverse (324325201), we get a palindrome (426848624).

The spelling of 102523423 in words is "one hundred two million, five hundred twenty-three thousand, four hundred twenty-three".