12355030231020 has 120 divisors (see below), whose sum is σ = 39018310254000. Its totient is φ = 3272562753408.

The previous prime is 12355030231013. The next prime is 12355030231031. The reversal of 12355030231020 is 2013203055321.

It is a happy number.

12355030231020 is a `hidden beast` number, since 1 + 2 + 3 + 550 + 3 + 0 + 2 + 3 + 102 + 0 = 666.

It is a super-2 number, since 2×12355030231020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25351110 + ... + 25833869.

It is an arithmetic number, because the mean of its divisors is an integer number (325152585450).

Almost surely, 2^{12355030231020} is an apocalyptic number.

12355030231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12355030231020 is an abundant number, since it is smaller than the sum of its proper divisors (26663280022980).

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

12355030231020 is a wasteful number, since it uses less digits than its factorization.

12355030231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51185149 (or 51185138 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 12355030231020 its reverse (2013203055321), we get a palindrome (14368233286341).

The spelling of 12355030231020 in words is "twelve trillion, three hundred fifty-five billion, thirty million, two hundred thirty-one thousand, twenty".