1003650040021 has 4 divisors (see below), whose sum is σ = 1003810092544. Its totient is φ = 1003489987500.

The previous prime is 1003650040007. The next prime is 1003650040039. The reversal of 1003650040021 is 1200400563001.

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 1003650040021 - 2¹⁵ = 1003650007253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003650039974 and 1003650040001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003650040051) 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, 80016855 + ... + 80029396.

It is an arithmetic number, because the mean of its divisors is an integer number (250952523136).

Almost surely, 2^{1003650040021} is an apocalyptic number.

It is an amenable number.

1003650040021 is a deficient number, since it is larger than the sum of its proper divisors (160052523).

1003650040021 is an equidigital number, since it uses as much as digits as its factorization.

1003650040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160052522.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 1003650040021 in words is "one trillion, three billion, six hundred fifty million, forty thousand, twenty-one".