1242530313 has 32 divisors (see below), whose sum is σ = 1733652480. Its totient is φ = 790706880.

The previous prime is 1242530309. The next prime is 1242530321. The reversal of 1242530313 is 3130352421.

It is not a de Polignac number, because 1242530313 - 2² = 1242530309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242537313) 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 31 ways as a sum of consecutive naturals, for example, 3580606 + ... + 3580952.

It is an arithmetic number, because the mean of its divisors is an integer number (54176640).

Almost surely, 2^1242530313 is an apocalyptic number.

It is an amenable number.

1242530313 is a deficient number, since it is larger than the sum of its proper divisors (491122167).

1242530313 is a wasteful number, since it uses less digits than its factorization.

1242530313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1242530313 is about 35249.5434438519. The cubic root of 1242530313 is about 1075.0673296210.

Adding to 1242530313 its reverse (3130352421), we get a palindrome (4372882734).

The spelling of 1242530313 in words is "one billion, two hundred forty-two million, five hundred thirty thousand, three hundred thirteen".