121303130242 has 16 divisors (see below), whose sum is σ = 208818305280. Its totient is φ = 51769535328.

The previous prime is 121303130237. The next prime is 121303130257. The reversal of 121303130242 is 242031303121.

It is a super-2 number, since 2×121303130242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18123243 + ... + 18129934.

It is an arithmetic number, because the mean of its divisors is an integer number (13051144080).

Almost surely, 2^121303130242 is an apocalyptic number.

121303130242 is a deficient number, since it is larger than the sum of its proper divisors (87515175038).

121303130242 is a wasteful number, since it uses less digits than its factorization.

121303130242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36253425.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121303130242 its reverse (242031303121), we get a palindrome (363334433363).

The spelling of 121303130242 in words is "one hundred twenty-one billion, three hundred three million, one hundred thirty thousand, two hundred forty-two".