121055435043 has 16 divisors (see below), whose sum is σ = 162004841856. Its totient is φ = 80404922880.

The previous prime is 121055435029. The next prime is 121055435047. The reversal of 121055435043 is 340534550121.

It is not a de Polignac number, because 121055435043 - 2¹⁶ = 121055369507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121055434995 and 121055435013.

It is not an unprimeable number, because it can be changed into a prime (121055435047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9219523 + ... + 9232643.

It is an arithmetic number, because the mean of its divisors is an integer number (10125302616).

Almost surely, 2^121055435043 is an apocalyptic number.

121055435043 is a deficient number, since it is larger than the sum of its proper divisors (40949406813).

121055435043 is a wasteful number, since it uses less digits than its factorization.

121055435043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24274.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 121055435043 its reverse (340534550121), we get a palindrome (461589985164).

The spelling of 121055435043 in words is "one hundred twenty-one billion, fifty-five million, four hundred thirty-five thousand, forty-three".