1243042130 has 96 divisors (see below), whose sum is σ = 2690091648. Its totient is φ = 409305600.

The previous prime is 1243042127. The next prime is 1243042133. The reversal of 1243042130 is 312403421.

It is an interprime number because it is at equal distance from previous prime (1243042127) and next prime (1243042133).

It is not an unprimeable number, because it can be changed into a prime (1243042133) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 912650 + ... + 914010.

It is an arithmetic number, because the mean of its divisors is an integer number (28021788).

Almost surely, 2^1243042130 is an apocalyptic number.

1243042130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243042130 is an abundant number, since it is smaller than the sum of its proper divisors (1447049518).

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

1243042130 is a wasteful number, since it uses less digits than its factorization.

1243042130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1421 counting only the distinct ones).

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

The square root of 1243042130 is about 35256.8026060220. The cubic root of 1243042130 is about 1075.2149215138.

Adding to 1243042130 its reverse (312403421), we get a palindrome (1555445551).

The spelling of 1243042130 in words is "one billion, two hundred forty-three million, forty-two thousand, one hundred thirty".