11053432531 has 4 divisors (see below), whose sum is σ = 11151250632. Its totient is φ = 10955614432.

The previous prime is 11053432499. The next prime is 11053432541. The reversal of 11053432531 is 13523435011.

It is a happy number.

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 11053432531 - 2⁵ = 11053432499 is a prime.

It is a super-2 number, since 2×11053432531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11053432531.

It is not an unprimeable number, because it can be changed into a prime (11053432541) 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, 48908881 + ... + 48909106.

It is an arithmetic number, because the mean of its divisors is an integer number (2787812658).

Almost surely, 2^11053432531 is an apocalyptic number.

11053432531 is a deficient number, since it is larger than the sum of its proper divisors (97818101).

11053432531 is an equidigital number, since it uses as much as digits as its factorization.

11053432531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97818100.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 11053432531 its reverse (13523435011), we get a palindrome (24576867542).

The spelling of 11053432531 in words is "eleven billion, fifty-three million, four hundred thirty-two thousand, five hundred thirty-one".