121202402425342 has 16 divisors (see below), whose sum is σ = 208283555697120. Its totient is φ = 51816884583168.

The previous prime is 121202402425339. The next prime is 121202402425343. The reversal of 121202402425342 is 243524204202121.

It is a junction number, because it is equal to n+sod(n) for n = 121202402425298 and 121202402425307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202402425343) 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, 10583508283 + ... + 10583519734.

It is an arithmetic number, because the mean of its divisors is an integer number (13017722231070).

Almost surely, 2^{121202402425342} is an apocalyptic number.

121202402425342 is a deficient number, since it is larger than the sum of its proper divisors (87081153271778).

121202402425342 is a wasteful number, since it uses less digits than its factorization.

121202402425342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21167028435.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 121202402425342 its reverse (243524204202121), we get a palindrome (364726606627463).

The spelling of 121202402425342 in words is "one hundred twenty-one trillion, two hundred two billion, four hundred two million, four hundred twenty-five thousand, three hundred forty-two".