1213331 has 16 divisors (see below), whose sum is σ = 1478400. Its totient is φ = 973728.

The previous prime is 1213327. The next prime is 1213339. The reversal of 1213331 is 1333121.

It is not a de Polignac number, because 1213331 - 2² = 1213327 is a prime.

It is a super-2 number, since 2×1213331² = 2944344231122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213339) 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, 8660 + ... + 8798.

It is an arithmetic number, because the mean of its divisors is an integer number (92400).

2^1213331 is an apocalyptic number.

1213331 is a deficient number, since it is larger than the sum of its proper divisors (265069).

1213331 is a wasteful number, since it uses less digits than its factorization.

1213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 54, while the sum is 14.

The square root of 1213331 is about 1101.5130503085. The cubic root of 1213331 is about 106.6579170340.

Adding to 1213331 its reverse (1333121), we get a palindrome (2546452).

The spelling of 1213331 in words is "one million, two hundred thirteen thousand, three hundred thirty-one".