1004365443421 has 4 divisors (see below), whose sum is σ = 1004564293344. Its totient is φ = 1004166593500.

The previous prime is 1004365443391. The next prime is 1004365443439. The reversal of 1004365443421 is 1243445634001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004365443421 - 2⁷ = 1004365443293 is a prime.

It is a super-3 number, since 3×1004365443421³ (a number of 37 digits) contains 333 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 (1004365443461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99417385 + ... + 99427486.

It is an arithmetic number, because the mean of its divisors is an integer number (251141073336).

Almost surely, 2^{1004365443421} is an apocalyptic number.

It is an amenable number.

1004365443421 is a deficient number, since it is larger than the sum of its proper divisors (198849923).

1004365443421 is an equidigital number, since it uses as much as digits as its factorization.

1004365443421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198849922.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 1004365443421 in words is "one trillion, four billion, three hundred sixty-five million, four hundred forty-three thousand, four hundred twenty-one".