121342230133242 has 16 divisors (see below), whose sum is σ = 242691290910432. Its totient is φ = 40446271603760.

The previous prime is 121342230133231. The next prime is 121342230133253. The reversal of 121342230133242 is 242331032243121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121342230133231) and next prime (121342230133253).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284379213 + ... + 284805584.

It is an arithmetic number, because the mean of its divisors is an integer number (15168205681902).

Almost surely, 2^{121342230133242} is an apocalyptic number.

121342230133242 is an abundant number, since it is smaller than the sum of its proper divisors (121349060777190).

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

121342230133242 is a wasteful number, since it uses less digits than its factorization.

121342230133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569220333.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 121342230133242 its reverse (242331032243121), we get a palindrome (363673262376363).

The spelling of 121342230133242 in words is "one hundred twenty-one trillion, three hundred forty-two billion, two hundred thirty million, one hundred thirty-three thousand, two hundred forty-two".