1212303 has 8 divisors (see below), whose sum is σ = 1632816. Its totient is φ = 800000.

The previous prime is 1212301. The next prime is 1212319. The reversal of 1212303 is 3032121.

It is a happy number.

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 1212303 - 2¹ = 1212301 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212301) 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, 1698 + ... + 2303.

It is an arithmetic number, because the mean of its divisors is an integer number (204102).

2^1212303 is an apocalyptic number.

1212303 is a deficient number, since it is larger than the sum of its proper divisors (420513).

1212303 is a wasteful number, since it uses less digits than its factorization.

1212303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1212303 is about 1101.0463205515. The cubic root of 1212303 is about 106.6277863940.

Adding to 1212303 its reverse (3032121), we get a palindrome (4244424).

It can be divided in two parts, 1212 and 303, that multiplied together give a square (367236 = 606²).

The spelling of 1212303 in words is "one million, two hundred twelve thousand, three hundred three".