1243240130 has 64 divisors (see below), whose sum is σ = 2516282496. Its totient is φ = 438336000.

The previous prime is 1243240111. The next prime is 1243240147. The reversal of 1243240130 is 310423421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 815549 + ... + 817071.

It is an arithmetic number, because the mean of its divisors is an integer number (39316914).

Almost surely, 2^1243240130 is an apocalyptic number.

1243240130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243240130 is an abundant number, since it is smaller than the sum of its proper divisors (1273042366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243240130 is a wasteful number, since it uses less digits than its factorization.

1243240130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1243240130 is about 35259.6104629646. The cubic root of 1243240130 is about 1075.2720076057.

Adding to 1243240130 its reverse (310423421), we get a palindrome (1553663551).

The spelling of 1243240130 in words is "one billion, two hundred forty-three million, two hundred forty thousand, one hundred thirty".