121433424353 has 4 divisors (see below), whose sum is σ = 128576566980. Its totient is φ = 114290281728.

The previous prime is 121433424349. The next prime is 121433424367. The reversal of 121433424353 is 353424334121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39120092944 + 82313331409 = 197788^2 + 286903^2 .

It is a cyclic number.

It is not a de Polignac number, because 121433424353 - 2² = 121433424349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121433424373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571571288 + ... + 3571571321.

It is an arithmetic number, because the mean of its divisors is an integer number (32144141745).

Almost surely, 2^121433424353 is an apocalyptic number.

It is an amenable number.

121433424353 is a deficient number, since it is larger than the sum of its proper divisors (7143142627).

121433424353 is an equidigital number, since it uses as much as digits as its factorization.

121433424353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143142626.

The product of its digits is 103680, while the sum is 35.

Adding to 121433424353 its reverse (353424334121), we get a palindrome (474857758474).

The spelling of 121433424353 in words is "one hundred twenty-one billion, four hundred thirty-three million, four hundred twenty-four thousand, three hundred fifty-three".