121435050455 has 16 divisors (see below), whose sum is σ = 153400350720. Its totient is φ = 92029760928.

The previous prime is 121435050449. The next prime is 121435050481. The reversal of 121435050455 is 554050534121.

It is a cyclic number.

It is not a de Polignac number, because 121435050455 - 2³⁴ = 104255181271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2838554 + ... + 2881016.

It is an arithmetic number, because the mean of its divisors is an integer number (9587521920).

Almost surely, 2^121435050455 is an apocalyptic number.

121435050455 is a deficient number, since it is larger than the sum of its proper divisors (31965300265).

121435050455 is a wasteful number, since it uses less digits than its factorization.

121435050455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72590.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 121435050455 its reverse (554050534121), we get a palindrome (675485584576).

The spelling of 121435050455 in words is "one hundred twenty-one billion, four hundred thirty-five million, fifty thousand, four hundred fifty-five".