2004121321045 has 16 divisors (see below), whose sum is σ = 2410256424960. Its totient is φ = 1599757306624.

The previous prime is 2004121321039. The next prime is 2004121321067. The reversal of 2004121321045 is 5401231214002.

It is a cyclic number.

It is not a de Polignac number, because 2004121321045 - 2⁹ = 2004121320533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21837324 + ... + 21928906.

It is an arithmetic number, because the mean of its divisors is an integer number (150641026560).

Almost surely, 2^{2004121321045} is an apocalyptic number.

It is an amenable number.

2004121321045 is a deficient number, since it is larger than the sum of its proper divisors (406135103915).

2004121321045 is an equidigital number, since it uses as much as digits as its factorization.

2004121321045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101204.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2004121321045 its reverse (5401231214002), we get a palindrome (7405352535047).

The spelling of 2004121321045 in words is "two trillion, four billion, one hundred twenty-one million, three hundred twenty-one thousand, forty-five".