12281020254 has 24 divisors (see below), whose sum is σ = 27594392280. Its totient is φ = 4093673256.

The previous prime is 12281020249. The next prime is 12281020259. The reversal of 12281020254 is 45202018221.

It is an interprime number because it is at equal distance from previous prime (12281020249) and next prime (12281020259).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12281020259) 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 11 ways as a sum of consecutive naturals, for example, 12634309 + ... + 12635280.

It is an arithmetic number, because the mean of its divisors is an integer number (1149766345).

Almost surely, 2^12281020254 is an apocalyptic number.

12281020254 is an abundant number, since it is smaller than the sum of its proper divisors (15313372026).

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

12281020254 is an equidigital number, since it uses as much as digits as its factorization.

12281020254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25269606 (or 25269594 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 12281020254 its reverse (45202018221), we get a palindrome (57483038475).

The spelling of 12281020254 in words is "twelve billion, two hundred eighty-one million, twenty thousand, two hundred fifty-four".