11151013531 has 8 divisors (see below), whose sum is σ = 13414753280. Its totient is φ = 9054958248.

The previous prime is 11151013519. The next prime is 11151013553. The reversal of 11151013531 is 13531015111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11151013531 - 2¹¹ = 11151011483 is a prime.

It is a super-2 number, since 2×11151013531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11151013931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41920971 + ... + 41921236.

It is an arithmetic number, because the mean of its divisors is an integer number (1676844160).

Almost surely, 2^11151013531 is an apocalyptic number.

11151013531 is a deficient number, since it is larger than the sum of its proper divisors (2263739749).

11151013531 is an equidigital number, since it uses as much as digits as its factorization.

11151013531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83842233.

The product of its (nonzero) digits is 225, while the sum is 22.

Adding to 11151013531 its reverse (13531015111), we get a palindrome (24682028642).

The spelling of 11151013531 in words is "eleven billion, one hundred fifty-one million, thirteen thousand, five hundred thirty-one".