121435532432434 has 16 divisors (see below), whose sum is σ = 200163147026976. Its totient is φ = 54795064400800.

The previous prime is 121435532432419. The next prime is 121435532432453. The reversal of 121435532432434 is 434234235534121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20145241252 + ... + 20145247279.

It is an arithmetic number, because the mean of its divisors is an integer number (12510196689186).

Almost surely, 2^{121435532432434} is an apocalyptic number.

121435532432434 is a deficient number, since it is larger than the sum of its proper divisors (78727614594542).

121435532432434 is a wasteful number, since it uses less digits than its factorization.

121435532432434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40290488681.

The product of its digits is 4147200, while the sum is 46.

Adding to 121435532432434 its reverse (434234235534121), we get a palindrome (555669767966555).

The spelling of 121435532432434 in words is "one hundred twenty-one trillion, four hundred thirty-five billion, five hundred thirty-two million, four hundred thirty-two thousand, four hundred thirty-four".