12230305155 has 48 divisors (see below), whose sum is σ = 23097059040. Its totient is φ = 6139113984.

The previous prime is 12230305147. The next prime is 12230305159. The reversal of 12230305155 is 55150303221.

It is a happy number.

It is not a de Polignac number, because 12230305155 - 2³ = 12230305147 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (12230305159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117724 + ... + 195753.

It is an arithmetic number, because the mean of its divisors is an integer number (481188730).

Almost surely, 2^12230305155 is an apocalyptic number.

12230305155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12230305155 is a deficient number, since it is larger than the sum of its proper divisors (10866753885).

12230305155 is a wasteful number, since it uses less digits than its factorization.

12230305155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313525 (or 313502 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 12230305155 its reverse (55150303221), we get a palindrome (67380608376).

The spelling of 12230305155 in words is "twelve billion, two hundred thirty million, three hundred five thousand, one hundred fifty-five".