1223331 has 16 divisors (see below), whose sum is σ = 1707264. Its totient is φ = 778464.

The previous prime is 1223329. The next prime is 1223351. The reversal of 1223331 is 1333221.

It is not a de Polignac number, because 1223331 - 2¹ = 1223329 is a prime.

It is a super-2 number, since 2×1223331² = 2993077471122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1223331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11380 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

2^1223331 is an apocalyptic number.

1223331 is a deficient number, since it is larger than the sum of its proper divisors (483933).

1223331 is a wasteful number, since it uses less digits than its factorization.

1223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 108, while the sum is 15.

The square root of 1223331 is about 1106.0429467249. The cubic root of 1223331 is about 106.9501325261.

Adding to 1223331 its reverse (1333221), we get a palindrome (2556552).

It can be divided in two parts, 12 and 23331, that multiplied together give a palindrome (279972).

The spelling of 1223331 in words is "one million, two hundred twenty-three thousand, three hundred thirty-one".