102113523 has 6 divisors (see below), whose sum is σ = 147497324. Its totient is φ = 68075676.

The previous prime is 102113513. The next prime is 102113569. The reversal of 102113523 is 325311201.

It is not a de Polignac number, because 102113523 - 2⁴ = 102113507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102113496 and 102113505.

It is not an unprimeable number, because it can be changed into a prime (102113513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5672965 + ... + 5672982.

Almost surely, 2^102113523 is an apocalyptic number.

102113523 is a deficient number, since it is larger than the sum of its proper divisors (45383801).

102113523 is a wasteful number, since it uses less digits than its factorization.

102113523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345953 (or 11345950 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 102113523 is about 10105.1236014212. The cubic root of 102113523 is about 467.4061473834.

Adding to 102113523 its reverse (325311201), we get a palindrome (427424724).

The spelling of 102113523 in words is "one hundred two million, one hundred thirteen thousand, five hundred twenty-three".