121330242042 has 16 divisors (see below), whose sum is σ = 242665433280. Its totient is φ = 40442589152.

The previous prime is 121330242029. The next prime is 121330242043. The reversal of 121330242042 is 240242033121.

It is a happy number.

121330242042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (121330242043) 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, 163459 + ... + 519017.

It is an arithmetic number, because the mean of its divisors is an integer number (15166589580).

Almost surely, 2^121330242042 is an apocalyptic number.

121330242042 is an abundant number, since it is smaller than the sum of its proper divisors (121335191238).

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

121330242042 is a wasteful number, since it uses less digits than its factorization.

121330242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412437.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 121330242042 its reverse (240242033121), we get a palindrome (361572275163).

The spelling of 121330242042 in words is "one hundred twenty-one billion, three hundred thirty million, two hundred forty-two thousand, forty-two".