12530031 has 4 divisors (see below), whose sum is σ = 16706712. Its totient is φ = 8353352.

The previous prime is 12530029. The next prime is 12530039. The reversal of 12530031 is 13003521.

It is a happy number.

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 12530031 - 2¹ = 12530029 is a prime.

It is a super-2 number, since 2×12530031² = 314003353721922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530039) 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, 2088336 + ... + 2088341.

It is an arithmetic number, because the mean of its divisors is an integer number (4176678).

Almost surely, 2^12530031 is an apocalyptic number.

12530031 is a deficient number, since it is larger than the sum of its proper divisors (4176681).

12530031 is an equidigital number, since it uses as much as digits as its factorization.

12530031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176680.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12530031 is about 3539.7783828935. The cubic root of 12530031 is about 232.2651484467.

Adding to 12530031 its reverse (13003521), we get a palindrome (25533552).

The spelling of 12530031 in words is "twelve million, five hundred thirty thousand, thirty-one".