1123213 has 8 divisors (see below), whose sum is σ = 1382528. Its totient is φ = 888624.

The previous prime is 1123211. The next prime is 1123217. The reversal of 1123213 is 3123211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123213 - 2¹ = 1123211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1123193 and 1123202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6081 + ... + 6262.

It is an arithmetic number, because the mean of its divisors is an integer number (172816).

2^1123213 is an apocalyptic number.

1123213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1123213 is a deficient number, since it is larger than the sum of its proper divisors (259315).

1123213 is a wasteful number, since it uses less digits than its factorization.

1123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363.

The product of its digits is 36, while the sum is 13.

The square root of 1123213 is about 1059.8174371089. The cubic root of 1123213 is about 103.9490936760.

Adding to 1123213 its reverse (3123211), we get a palindrome (4246424).

The spelling of 1123213 in words is "one million, one hundred twenty-three thousand, two hundred thirteen".