130002523 has 4 divisors (see below), whose sum is σ = 148574320. Its totient is φ = 111430728.

The previous prime is 130002493. The next prime is 130002569. The reversal of 130002523 is 325200031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130002523 - 2²⁵ = 96448091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130002497 and 130002506.

It is not an unprimeable number, because it can be changed into a prime (130002823) 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, 9285888 + ... + 9285901.

It is an arithmetic number, because the mean of its divisors is an integer number (37143580).

Almost surely, 2^130002523 is an apocalyptic number.

130002523 is a deficient number, since it is larger than the sum of its proper divisors (18571797).

130002523 is an equidigital number, since it uses as much as digits as its factorization.

130002523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18571796.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 130002523 is about 11401.8648913237. The cubic root of 130002523 is about 506.5829790699.

Adding to 130002523 its reverse (325200031), we get a palindrome (455202554).

The spelling of 130002523 in words is "one hundred thirty million, two thousand, five hundred twenty-three".