531043045033013 has 4 divisors (see below), whose sum is σ = 531900949791360. Its totient is φ = 530185140274668.

The previous prime is 531043045033003. The next prime is 531043045033093. The reversal of 531043045033013 is 310330540340135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531043045033013 - 2⁴⁸ = 249568068322357 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 (531043045033003) 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, 428952378245 + ... + 428952379482.

It is an arithmetic number, because the mean of its divisors is an integer number (132975237447840).

Almost surely, 2^{531043045033013} is an apocalyptic number.

It is an amenable number.

531043045033013 is a deficient number, since it is larger than the sum of its proper divisors (857904758347).

531043045033013 is an equidigital number, since it uses as much as digits as its factorization.

531043045033013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857904758346.

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 531043045033013 its reverse (310330540340135), we get a palindrome (841373585373148).

The spelling of 531043045033013 in words is "five hundred thirty-one trillion, forty-three billion, forty-five million, thirty-three thousand, thirteen".