1213335242 has 16 divisors (see below), whose sum is σ = 2080451520. Its totient is φ = 519888768.

The previous prime is 1213335241. The next prime is 1213335247. The reversal of 1213335242 is 2425333121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1213335241) 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 in 7 ways as a sum of consecutive naturals, for example, 115493 + ... + 125559.

It is an arithmetic number, because the mean of its divisors is an integer number (130028220).

Almost surely, 2^1213335242 is an apocalyptic number.

1213335242 is a deficient number, since it is larger than the sum of its proper divisors (867116278).

1213335242 is a wasteful number, since it uses less digits than its factorization.

1213335242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18685.

The product of its digits is 4320, while the sum is 26.

The square root of 1213335242 is about 34832.9620044004. The cubic root of 1213335242 is about 1066.5804133163.

Adding to 1213335242 its reverse (2425333121), we get a palindrome (3638668363).

The spelling of 1213335242 in words is "one billion, two hundred thirteen million, three hundred thirty-five thousand, two hundred forty-two".