121441403000421 has 24 divisors (see below), whose sum is σ = 200493562777664. Its totient is φ = 69388556973120.

The previous prime is 121441403000413. The next prime is 121441403000509. The reversal of 121441403000421 is 124000304144121.

121441403000421 is a `hidden beast` number, since 1 + 214 + 4 + 1 + 403 + 0 + 0 + 0 + 42 + 1 = 666.

It is not a de Polignac number, because 121441403000421 - 2³ = 121441403000413 is a prime.

It is a super-2 number, since 2×121441403000421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121441403000321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90025960 + ... + 91364961.

Almost surely, 2^{121441403000421} is an apocalyptic number.

It is an amenable number.

121441403000421 is a deficient number, since it is larger than the sum of its proper divisors (79052159777243).

121441403000421 is a wasteful number, since it uses less digits than its factorization.

121441403000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181401561 (or 181401558 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 121441403000421 its reverse (124000304144121), we get a palindrome (245441707144542).

The spelling of 121441403000421 in words is "one hundred twenty-one trillion, four hundred forty-one billion, four hundred three million, four hundred twenty-one", and thus it is an aban number.