11523340452 has 96 divisors (see below), whose sum is σ = 31117468032. Its totient is φ = 3287218176.

The previous prime is 11523340427. The next prime is 11523340453. The reversal of 11523340452 is 25404332511.

It is not an unprimeable number, because it can be changed into a prime (11523340453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145258 + ... + 210110.

It is an arithmetic number, because the mean of its divisors is an integer number (324140292).

Almost surely, 2^11523340452 is an apocalyptic number.

11523340452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11523340452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15558734016).

11523340452 is an abundant number, since it is smaller than the sum of its proper divisors (19594127580).

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

11523340452 is a wasteful number, since it uses less digits than its factorization.

11523340452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64957 (or 64955 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 11523340452 its reverse (25404332511), we get a palindrome (36927672963).

The spelling of 11523340452 in words is "eleven billion, five hundred twenty-three million, three hundred forty thousand, four hundred fifty-two".