1004523103081 has 3 divisors (see below), whose sum is σ = 1004524105341. Its totient is φ = 1004522100822.

The previous prime is 1004523103061. The next prime is 1004523103093. The reversal of 1004523103081 is 1803013254001.

It is a happy number.

The square root of 1004523103081 is 1002259.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1004523103081 - 2³⁵ = 970163364713 is a prime.

It is a super-2 number, since 2×1004523103081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004523103061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 501130 + ... + 1503388.

It is an arithmetic number, because the mean of its divisors is an integer number (334841368447).

Almost surely, 2^{1004523103081} is an apocalyptic number.

1004523103081 is the 1002259-th square number.

1004523103081 is the 501130-th centered octagonal number.

It is an amenable number.

1004523103081 is a deficient number, since it is larger than the sum of its proper divisors (1002260).

1004523103081 is an frugal number, since it uses more digits than its factorization.

1004523103081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004518 (or 1002259 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1004523103081 its reverse (1803013254001), we get a palindrome (2807536357082).

The spelling of 1004523103081 in words is "one trillion, four billion, five hundred twenty-three million, one hundred three thousand, eighty-one".