11205031 has 2 divisors, whose sum is σ = 11205032. Its totient is φ = 11205030.

The previous prime is 11205017. The next prime is 11205059. The reversal of 11205031 is 13050211.

It is a weak prime.

It is an emirp because it is prime and its reverse (13050211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11205031 - 2⁷ = 11204903 is a prime.

It is a super-2 number, since 2×11205031² = 251105439421922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11200031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5602515 + 5602516.

It is an arithmetic number, because the mean of its divisors is an integer number (5602516).

Almost surely, 2^11205031 is an apocalyptic number.

11205031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11205031 is an equidigital number, since it uses as much as digits as its factorization.

11205031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11205031 is about 3347.3916711374. The cubic root of 11205031 is about 223.7712841399.

Adding to 11205031 its reverse (13050211), we get a palindrome (24255242).

The spelling of 11205031 in words is "eleven million, two hundred five thousand, thirty-one".