11030531 has 2 divisors, whose sum is σ = 11030532. Its totient is φ = 11030530.

The previous prime is 11030497. The next prime is 11030543. The reversal of 11030531 is 13503011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11030531 - 2¹⁰ = 11029507 is a prime.

It is a super-2 number, since 2×11030531² = 243345228283922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11030561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515265 + 5515266.

It is an arithmetic number, because the mean of its divisors is an integer number (5515266).

Almost surely, 2^11030531 is an apocalyptic number.

11030531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030531 is an equidigital number, since it uses as much as digits as its factorization.

11030531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11030531 is about 3321.2243224450. The cubic root of 11030531 is about 222.6035775802.

Adding to 11030531 its reverse (13503011), we get a palindrome (24533542).

The spelling of 11030531 in words is "eleven million, thirty thousand, five hundred thirty-one".