1242130241 has 8 divisors (see below), whose sum is σ = 1383882624. Its totient is φ = 1105183120.

The previous prime is 1242130229. The next prime is 1242130243. The reversal of 1242130241 is 1420312421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242130241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242130243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200770 + ... + 1201803.

It is an arithmetic number, because the mean of its divisors is an integer number (172985328).

Almost surely, 2^1242130241 is an apocalyptic number.

1242130241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1242130241 is a deficient number, since it is larger than the sum of its proper divisors (141752383).

1242130241 is a wasteful number, since it uses less digits than its factorization.

1242130241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402631.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1242130241 is about 35243.8681333363. The cubic root of 1242130241 is about 1074.9519332393.

Adding to 1242130241 its reverse (1420312421), we get a palindrome (2662442662).

The spelling of 1242130241 in words is "one billion, two hundred forty-two million, one hundred thirty thousand, two hundred forty-one".