1330242121 has 4 divisors (see below), whose sum is σ = 1432568452. Its totient is φ = 1227915792.

The previous prime is 1330242119. The next prime is 1330242127. The reversal of 1330242121 is 1212420331.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 238270096 + 1091972025 = 15436^2 + 33045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330242121 - 2¹ = 1330242119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330242127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51163146 + ... + 51163171.

It is an arithmetic number, because the mean of its divisors is an integer number (358142113).

Almost surely, 2^1330242121 is an apocalyptic number.

It is an amenable number.

1330242121 is a deficient number, since it is larger than the sum of its proper divisors (102326331).

1330242121 is a wasteful number, since it uses less digits than its factorization.

1330242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102326330.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1330242121 is about 36472.4844369012. The cubic root of 1330242121 is about 1099.7911782666.

Adding to 1330242121 its reverse (1212420331), we get a palindrome (2542662452).

The spelling of 1330242121 in words is "one billion, three hundred thirty million, two hundred forty-two thousand, one hundred twenty-one".