121440402410409 has 80 divisors (see below), whose sum is σ = 182990653285440. Its totient is φ = 80257853220480.

The previous prime is 121440402410407. The next prime is 121440402410413. The reversal of 121440402410409 is 904014204044121.

121440402410409 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 4 + 0 + 4 + 0 + 241 + 0 + 409 = 666.

It is not a de Polignac number, because 121440402410409 - 2¹ = 121440402410407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121440402410401) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 16766585142 + ... + 16766592384.

It is an arithmetic number, because the mean of its divisors is an integer number (2287383166068).

Almost surely, 2^{121440402410409} is an apocalyptic number.

It is an amenable number.

121440402410409 is a deficient number, since it is larger than the sum of its proper divisors (61550250875031).

121440402410409 is a wasteful number, since it uses less digits than its factorization.

121440402410409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10292 (or 10283 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 121440402410409 in words is "one hundred twenty-one trillion, four hundred forty billion, four hundred two million, four hundred ten thousand, four hundred nine".