12451202240 has 56 divisors (see below), whose sum is σ = 29658960240. Its totient is φ = 4978879488.

The previous prime is 12451202233. The next prime is 12451202251. The reversal of 12451202240 is 4220215421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845914 + ... + 1852646.

It is an arithmetic number, because the mean of its divisors is an integer number (529624290).

Almost surely, 2^12451202240 is an apocalyptic number.

12451202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12451202240 is an abundant number, since it is smaller than the sum of its proper divisors (17207758000).

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

12451202240 is an equidigital number, since it uses as much as digits as its factorization.

12451202240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12529 (or 12519 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12451202240 its reverse (4220215421), we get a palindrome (16671417661).

The spelling of 12451202240 in words is "twelve billion, four hundred fifty-one million, two hundred two thousand, two hundred forty".