12113451252 has 288 divisors, whose sum is σ = 38992472064. Its totient is φ = 3091046400.

The previous prime is 12113451227. The next prime is 12113451253. The reversal of 12113451252 is 25215431121.

It is a happy number.

12113451252 is a `hidden beast` number, since 12 + 1 + 134 + 512 + 5 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113451253) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7037752 + ... + 7039472.

It is an arithmetic number, because the mean of its divisors is an integer number (135390528).

Almost surely, 2^12113451252 is an apocalyptic number.

12113451252 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 12113451252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19496236032).

12113451252 is an abundant number, since it is smaller than the sum of its proper divisors (26879020812).

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

12113451252 is a wasteful number, since it uses less digits than its factorization.

12113451252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1834 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 12113451252 its reverse (25215431121), we get a palindrome (37328882373).

The spelling of 12113451252 in words is "twelve billion, one hundred thirteen million, four hundred fifty-one thousand, two hundred fifty-two".