2421440023001 has 4 divisors (see below), whose sum is σ = 2421443272500. Its totient is φ = 2421436773504.

The previous prime is 2421440022997. The next prime is 2421440023007. The reversal of 2421440023001 is 1003200441242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 777721153225 + 1643718869776 = 881885^2 + 1282076^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421440023001 - 2² = 2421440022997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2421440023007) 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, 111425 + ... + 2203473.

It is an arithmetic number, because the mean of its divisors is an integer number (605360818125).

Almost surely, 2^{2421440023001} is an apocalyptic number.

It is an amenable number.

2421440023001 is a deficient number, since it is larger than the sum of its proper divisors (3249499).

2421440023001 is a wasteful number, since it uses less digits than its factorization.

2421440023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249498.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2421440023001 its reverse (1003200441242), we get a palindrome (3424640464243).

The spelling of 2421440023001 in words is "two trillion, four hundred twenty-one billion, four hundred forty million, twenty-three thousand, one".