531104445516403 has 4 divisors (see below), whose sum is σ = 579386667836088. Its totient is φ = 482822223196720.

The previous prime is 531104445516391. The next prime is 531104445516511. The reversal of 531104445516403 is 304615544401135.

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

It is a de Polignac number, because none of the positive numbers 2^k-531104445516403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531104445816403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24141111159826 + ... + 24141111159847.

It is an arithmetic number, because the mean of its divisors is an integer number (144846666959022).

Almost surely, 2^{531104445516403} is an apocalyptic number.

531104445516403 is a deficient number, since it is larger than the sum of its proper divisors (48282222319685).

531104445516403 is a wasteful number, since it uses less digits than its factorization.

531104445516403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48282222319684.

The product of its (nonzero) digits is 1728000, while the sum is 46.

Adding to 531104445516403 its reverse (304615544401135), we get a palindrome (835719989917538).

The spelling of 531104445516403 in words is "five hundred thirty-one trillion, one hundred four billion, four hundred forty-five million, five hundred sixteen thousand, four hundred three".