424140044121 has 40 divisors (see below), whose sum is σ = 636977679624. Its totient is φ = 281251595520.

The previous prime is 424140044101. The next prime is 424140044129. The reversal of 424140044121 is 121440041424.

It is a happy number.

424140044121 is a `hidden beast` number, since 4 + 241 + 4 + 0 + 0 + 4 + 412 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 132335888400 + 291804155721 = 363780^2 + 540189^2 .

It is not a de Polignac number, because 424140044121 - 2⁵ = 424140044089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (424140044129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18805111 + ... + 18827651.

Almost surely, 2^424140044121 is an apocalyptic number.

It is an amenable number.

424140044121 is a deficient number, since it is larger than the sum of its proper divisors (212837635503).

424140044121 is a wasteful number, since it uses less digits than its factorization.

424140044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23783 (or 23774 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 424140044121 its reverse (121440041424), we get a palindrome (545580085545).

The spelling of 424140044121 in words is "four hundred twenty-four billion, one hundred forty million, forty-four thousand, one hundred twenty-one".