11230661 has 4 divisors (see below), whose sum is σ = 12094572. Its totient is φ = 10366752.

The previous prime is 11230633. The next prime is 11230663. The reversal of 11230661 is 16603211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16603211 = 193 ⋅86027.

It can be written as a sum of positive squares in 2 ways, for example, as 4950625 + 6280036 = 2225^2 + 2506^2 .

It is a cyclic number.

It is not a de Polignac number, because 11230661 - 2¹⁰ = 11229637 is a prime.

It is a super-2 number, since 2×11230661² = 252255492993842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230663) 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, 431936 + ... + 431961.

It is an arithmetic number, because the mean of its divisors is an integer number (3023643).

Almost surely, 2^11230661 is an apocalyptic number.

It is an amenable number.

11230661 is a deficient number, since it is larger than the sum of its proper divisors (863911).

11230661 is an equidigital number, since it uses as much as digits as its factorization.

11230661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863910.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11230661 is about 3351.2178383388. The cubic root of 11230661 is about 223.9417697811.

Adding to 11230661 its reverse (16603211), we get a palindrome (27833872).

The spelling of 11230661 in words is "eleven million, two hundred thirty thousand, six hundred sixty-one".