121433430121 has 8 divisors (see below), whose sum is σ = 121756224384. Its totient is φ = 121110980640.

The previous prime is 121433430077. The next prime is 121433430143. The reversal of 121433430121 is 121034334121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121433430121 - 2¹⁵ = 121433397353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121433430161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626956 + ... + 797458.

It is an arithmetic number, because the mean of its divisors is an integer number (15219528048).

Almost surely, 2^121433430121 is an apocalyptic number.

It is an amenable number.

121433430121 is a deficient number, since it is larger than the sum of its proper divisors (322794263).

121433430121 is a wasteful number, since it uses less digits than its factorization.

121433430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172391.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121433430121 its reverse (121034334121), we get a palindrome (242467764242).

The spelling of 121433430121 in words is "one hundred twenty-one billion, four hundred thirty-three million, four hundred thirty thousand, one hundred twenty-one".