11530031 has 2 divisors, whose sum is σ = 11530032. Its totient is φ = 11530030.

The previous prime is 11530027. The next prime is 11530049. The reversal of 11530031 is 13003511.

It is a weak prime.

It is an emirp because it is prime and its reverse (13003511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11530031 - 2² = 11530027 is a prime.

It is a super-2 number, since 2×11530031² = 265883229721922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11529988 and 11530015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11530091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765015 + 5765016.

It is an arithmetic number, because the mean of its divisors is an integer number (5765016).

Almost surely, 2^11530031 is an apocalyptic number.

11530031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530031 is an equidigital number, since it uses as much as digits as its factorization.

11530031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 11530031 is about 3395.5899340174. The cubic root of 11530031 is about 225.9141802225.

Adding to 11530031 its reverse (13003511), we get a palindrome (24533542).

The spelling of 11530031 in words is "eleven million, five hundred thirty thousand, thirty-one".