11231303524 has 36 divisors (see below), whose sum is σ = 23017232700. Its totient is φ = 4781098560.

The previous prime is 11231303507. The next prime is 11231303527. The reversal of 11231303524 is 42530313211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4080909924 + 7150393600 = 63882^2 + 84560^2 .

It is a super-2 number, since 2×11231303524² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231303527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163087 + ... + 221494.

It is an arithmetic number, because the mean of its divisors is an integer number (639367575).

Almost surely, 2^11231303524 is an apocalyptic number.

11231303524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11231303524 is an abundant number, since it is smaller than the sum of its proper divisors (11785929176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11231303524 is a wasteful number, since it uses less digits than its factorization.

11231303524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384748 (or 384739 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 11231303524 its reverse (42530313211), we get a palindrome (53761616735).

The spelling of 11231303524 in words is "eleven billion, two hundred thirty-one million, three hundred three thousand, five hundred twenty-four".