11333452531 has 4 divisors (see below), whose sum is σ = 11547291312. Its totient is φ = 11119613752.

The previous prime is 11333452523. The next prime is 11333452589. The reversal of 11333452531 is 13525433311.

It is a happy number.

11333452531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11333452531 - 2³ = 11333452523 is a prime.

It is a super-2 number, since 2×11333452531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11333452493 and 11333452502.

It is not an unprimeable number, because it can be changed into a prime (11333452591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106919311 + ... + 106919416.

It is an arithmetic number, because the mean of its divisors is an integer number (2886822828).

Almost surely, 2^11333452531 is an apocalyptic number.

11333452531 is a deficient number, since it is larger than the sum of its proper divisors (213838781).

11333452531 is an equidigital number, since it uses as much as digits as its factorization.

11333452531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213838780.

The product of its digits is 16200, while the sum is 31.

Adding to 11333452531 its reverse (13525433311), we get a palindrome (24858885842).

The spelling of 11333452531 in words is "eleven billion, three hundred thirty-three million, four hundred fifty-two thousand, five hundred thirty-one".