1003144340521 has 4 divisors (see below), whose sum is σ = 1046759311872. Its totient is φ = 959529369172.

The previous prime is 1003144340519. The next prime is 1003144340531. The reversal of 1003144340521 is 1250434413001.

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 1003144340521 - 2¹ = 1003144340519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1003144340521.

It is not an unprimeable number, because it can be changed into a prime (1003144340531) 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, 21807485641 + ... + 21807485686.

It is an arithmetic number, because the mean of its divisors is an integer number (261689827968).

Almost surely, 2^{1003144340521} is an apocalyptic number.

It is an amenable number.

1003144340521 is a deficient number, since it is larger than the sum of its proper divisors (43614971351).

1003144340521 is an equidigital number, since it uses as much as digits as its factorization.

1003144340521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43614971350.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 1003144340521 its reverse (1250434413001), we get a palindrome (2253578753522).

The spelling of 1003144340521 in words is "one trillion, three billion, one hundred forty-four million, three hundred forty thousand, five hundred twenty-one".