12351053220 has 144 divisors (see below), whose sum is σ = 38731089600. Its totient is φ = 2937608960.

The previous prime is 12351053191. The next prime is 12351053251. The reversal of 12351053220 is 2235015321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 368731 + ... + 400829.

It is an arithmetic number, because the mean of its divisors is an integer number (268965900).

Almost surely, 2^12351053220 is an apocalyptic number.

12351053220 is a gapful number since it is divisible by the number (10) 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 12351053220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19365544800).

12351053220 is an abundant number, since it is smaller than the sum of its proper divisors (26380036380).

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

12351053220 is a wasteful number, since it uses less digits than its factorization.

12351053220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32186 (or 32173 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12351053220 its reverse (2235015321), we get a palindrome (14586068541).

The spelling of 12351053220 in words is "twelve billion, three hundred fifty-one million, fifty-three thousand, two hundred twenty".