1004230500521 has 4 divisors (see below), whose sum is σ = 1038859138500. Its totient is φ = 969601862544.

The previous prime is 1004230500487. The next prime is 1004230500569. The reversal of 1004230500521 is 1250050324001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 567852673600 + 436377826921 = 753560^2 + 660589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004230500521 - 2⁶ = 1004230500457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004230500421) 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, 17314318946 + ... + 17314319003.

It is an arithmetic number, because the mean of its divisors is an integer number (259714784625).

Almost surely, 2^{1004230500521} is an apocalyptic number.

It is an amenable number.

1004230500521 is a deficient number, since it is larger than the sum of its proper divisors (34628637979).

1004230500521 is an equidigital number, since it uses as much as digits as its factorization.

1004230500521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34628637978.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 1004230500521 its reverse (1250050324001), we get a palindrome (2254280824522).

The spelling of 1004230500521 in words is "one trillion, four billion, two hundred thirty million, five hundred thousand, five hundred twenty-one".