1213310 has 16 divisors (see below), whose sum is σ = 2496096. Its totient is φ = 415968.

The previous prime is 1213301. The next prime is 1213327. The reversal of 1213310 is 133121.

It is a super-2 number, since 2×1213310² = 2944242312200, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213291 and 1213300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8597 + ... + 8736.

It is an arithmetic number, because the mean of its divisors is an integer number (156006).

2^1213310 is an apocalyptic number.

1213310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213310 is an abundant number, since it is smaller than the sum of its proper divisors (1282786).

1213310 is a wasteful number, since it uses less digits than its factorization.

1213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17347.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1213310 is about 1101.5035179245. The cubic root of 1213310 is about 106.6573016952.

Adding to 1213310 its reverse (133121), we get a palindrome (1346431).

The spelling of 1213310 in words is "one million, two hundred thirteen thousand, three hundred ten".