531535403503103 has 4 divisors (see below), whose sum is σ = 562802191944480. Its totient is φ = 500268615061728.

The previous prime is 531535403503033. The next prime is 531535403503163. The reversal of 531535403503103 is 301305304535135.

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

It is a cyclic number.

It is not a de Polignac number, because 531535403503103 - 2⁸ = 531535403502847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531535403503163) 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, 15633394220663 + ... + 15633394220696.

It is an arithmetic number, because the mean of its divisors is an integer number (140700547986120).

Almost surely, 2^{531535403503103} is an apocalyptic number.

531535403503103 is a deficient number, since it is larger than the sum of its proper divisors (31266788441377).

531535403503103 is a wasteful number, since it uses less digits than its factorization.

531535403503103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31266788441376.

The product of its (nonzero) digits is 607500, while the sum is 41.

The spelling of 531535403503103 in words is "five hundred thirty-one trillion, five hundred thirty-five billion, four hundred three million, five hundred three thousand, one hundred three".