531041013 has 24 divisors (see below), whose sum is σ = 826219680. Its totient is φ = 327589920.

The previous prime is 531040999. The next prime is 531041023. The reversal of 531041013 is 310140135.

It is not a de Polignac number, because 531041013 - 2⁵ = 531040981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531041023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28758 + ... + 43463.

It is an arithmetic number, because the mean of its divisors is an integer number (34425820).

Almost surely, 2^531041013 is an apocalyptic number.

It is an amenable number.

531041013 is a deficient number, since it is larger than the sum of its proper divisors (295178667).

531041013 is a wasteful number, since it uses less digits than its factorization.

531041013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72289 (or 72286 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 531041013 is about 23044.3271327240. The cubic root of 531041013 is about 809.7967345468.

Adding to 531041013 its reverse (310140135), we get a palindrome (841181148).

The spelling of 531041013 in words is "five hundred thirty-one million, forty-one thousand, thirteen".