1213403414 has 4 divisors (see below), whose sum is σ = 1820105124. Its totient is φ = 606701706.

The previous prime is 1213403357. The next prime is 1213403417. The reversal of 1213403414 is 4143043121.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213403414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213403417) by changing a digit.

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 as a sum of consecutive naturals, namely, 303350852 + ... + 303350855.

It is an arithmetic number, because the mean of its divisors is an integer number (455026281).

Almost surely, 2^1213403414 is an apocalyptic number.

1213403414 is a deficient number, since it is larger than the sum of its proper divisors (606701710).

1213403414 is an equidigital number, since it uses as much as digits as its factorization.

1213403414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606701709.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1213403414 is about 34833.9405465417. The cubic root of 1213403414 is about 1066.6003884383.

Adding to 1213403414 its reverse (4143043121), we get a palindrome (5356446535).

The spelling of 1213403414 in words is "one billion, two hundred thirteen million, four hundred three thousand, four hundred fourteen".