10131523 has 4 divisors (see below), whose sum is σ = 10572048. Its totient is φ = 9691000.

The previous prime is 10131491. The next prime is 10131529. The reversal of 10131523 is 32513101.

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 10131523 - 2⁵ = 10131491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10131497 and 10131506.

It is not an unprimeable number, because it can be changed into a prime (10131529) 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, 220228 + ... + 220273.

It is an arithmetic number, because the mean of its divisors is an integer number (2643012).

Almost surely, 2^10131523 is an apocalyptic number.

10131523 is a deficient number, since it is larger than the sum of its proper divisors (440525).

10131523 is an equidigital number, since it uses as much as digits as its factorization.

10131523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440524.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 10131523 is about 3183.0053408689. The cubic root of 10131523 is about 216.3838838145.

Adding to 10131523 its reverse (32513101), we get a palindrome (42644624).

The spelling of 10131523 in words is "ten million, one hundred thirty-one thousand, five hundred twenty-three".