1024404120421 has 8 divisors (see below), whose sum is σ = 1119727317600. Its totient is φ = 929446848240.

The previous prime is 1024404120407. The next prime is 1024404120427. The reversal of 1024404120421 is 1240214044201.

It is a happy number.

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 1024404120421 - 2¹⁹ = 1024403596133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024404120427) 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, 91475391 + ... + 91486588.

It is an arithmetic number, because the mean of its divisors is an integer number (139965914700).

Almost surely, 2^{1024404120421} is an apocalyptic number.

1024404120421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1024404120421 is a deficient number, since it is larger than the sum of its proper divisors (95323197179).

1024404120421 is a wasteful number, since it uses less digits than its factorization.

1024404120421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182962499.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1024404120421 its reverse (1240214044201), we get a palindrome (2264618164622).

The spelling of 1024404120421 in words is "one trillion, twenty-four billion, four hundred four million, one hundred twenty thousand, four hundred twenty-one".