531432052011 has 24 divisors (see below), whose sum is σ = 909776684544. Its totient is φ = 303675457320.

The previous prime is 531432051991. The next prime is 531432052043. The reversal of 531432052011 is 110250234135.

531432052011 is a `hidden beast` number, since 5 + 314 + 320 + 5 + 20 + 1 + 1 = 666.

It is not a de Polignac number, because 531432052011 - 2⁹ = 531432051499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (531432053011) 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, 156209955 + ... + 156213356.

It is an arithmetic number, because the mean of its divisors is an integer number (37907361856).

Almost surely, 2^531432052011 is an apocalyptic number.

531432052011 is a deficient number, since it is larger than the sum of its proper divisors (378344632533).

531432052011 is an equidigital number, since it uses as much as digits as its factorization.

531432052011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312423333 (or 312423321 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 531432052011 its reverse (110250234135), we get a palindrome (641682286146).

The spelling of 531432052011 in words is "five hundred thirty-one billion, four hundred thirty-two million, fifty-two thousand, eleven".