121242004434 has 12 divisors (see below), whose sum is σ = 262691009646. Its totient is φ = 40414001472.

The previous prime is 121242004409. The next prime is 121242004453. The reversal of 121242004434 is 434400242121.

121242004434 is a `hidden beast` number, since 1 + 2 + 1 + 24 + 200 + 4 + 434 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114260900625 + 6981103809 = 338025^2 + 83553^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121242004398 and 121242004407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3367833439 + ... + 3367833474.

Almost surely, 2^121242004434 is an apocalyptic number.

121242004434 is an abundant number, since it is smaller than the sum of its proper divisors (141449005212).

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

121242004434 is a wasteful number, since it uses less digits than its factorization.

121242004434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735666921 (or 6735666918 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 121242004434 its reverse (434400242121), we get a palindrome (555642246555).

The spelling of 121242004434 in words is "one hundred twenty-one billion, two hundred forty-two million, four thousand, four hundred thirty-four".