121668474007435 has 4 divisors (see below), whose sum is σ = 146002168808928. Its totient is φ = 97334779205944.

The previous prime is 121668474007433. The next prime is 121668474007453. The reversal of 121668474007435 is 534700474866121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121668474007435 - 2¹ = 121668474007433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121668474007435.

It is not an unprimeable number, because it can be changed into a prime (121668474007433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12166847400739 + ... + 12166847400748.

It is an arithmetic number, because the mean of its divisors is an integer number (36500542202232).

Almost surely, 2^{121668474007435} is an apocalyptic number.

121668474007435 is a deficient number, since it is larger than the sum of its proper divisors (24333694801493).

121668474007435 is an equidigital number, since it uses as much as digits as its factorization.

121668474007435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24333694801492.

The product of its (nonzero) digits is 27095040, while the sum is 58.

The spelling of 121668474007435 in words is "one hundred twenty-one trillion, six hundred sixty-eight billion, four hundred seventy-four million, seven thousand, four hundred thirty-five".