1313000242 has 4 divisors (see below), whose sum is σ = 1969500366. Its totient is φ = 656500120.

The previous prime is 1313000239. The next prime is 1313000243. The reversal of 1313000242 is 2420003131.

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 only one way, i.e., 1157972841 + 155027401 = 34029^2 + 12451^2 .

It is not an unprimeable number, because it can be changed into a prime (1313000243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328250059 + ... + 328250062.

Almost surely, 2^1313000242 is an apocalyptic number.

1313000242 is a deficient number, since it is larger than the sum of its proper divisors (656500124).

1313000242 is an equidigital number, since it uses as much as digits as its factorization.

1313000242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656500123.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1313000242 is about 36235.3452032680. The cubic root of 1313000242 is about 1095.0188669490.

Adding to 1313000242 its reverse (2420003131), we get a palindrome (3733003373).

The spelling of 1313000242 in words is "one billion, three hundred thirteen million, two hundred forty-two", and thus it is an aban number.