11280213 has 12 divisors (see below), whose sum is σ = 18621408. Its totient is φ = 6445800.

The previous prime is 11280211. The next prime is 11280221. The reversal of 11280213 is 31208211.

It is not a de Polignac number, because 11280213 - 2¹ = 11280211 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89463 + ... + 89588.

It is an arithmetic number, because the mean of its divisors is an integer number (1551784).

Almost surely, 2^11280213 is an apocalyptic number.

It is an amenable number.

11280213 is a deficient number, since it is larger than the sum of its proper divisors (7341195).

11280213 is a wasteful number, since it uses less digits than its factorization.

11280213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179064 (or 179061 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11280213 is about 3358.6028345132. The cubic root of 11280213 is about 224.2706457057.

Adding to 11280213 its reverse (31208211), we get a palindrome (42488424).

The spelling of 11280213 in words is "eleven million, two hundred eighty thousand, two hundred thirteen".