531505453113 has 24 divisors (see below), whose sum is σ = 777555920960. Its totient is φ = 349830770400.

The previous prime is 531505453111. The next prime is 531505453133. The reversal of 531505453113 is 311354505135.

531505453113 is a `hidden beast` number, since 5 + 31 + 50 + 545 + 31 + 1 + 3 = 666.

It is not a de Polignac number, because 531505453113 - 2¹ = 531505453111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531505453111) 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, 978178 + ... + 1421211.

Almost surely, 2^531505453113 is an apocalyptic number.

It is an amenable number.

531505453113 is a deficient number, since it is larger than the sum of its proper divisors (246050467847).

531505453113 is a wasteful number, since it uses less digits than its factorization.

531505453113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399709 (or 2399706 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 531505453113 its reverse (311354505135), we get a palindrome (842859958248).

The spelling of 531505453113 in words is "five hundred thirty-one billion, five hundred five million, four hundred fifty-three thousand, one hundred thirteen".