12140445420 has 72 divisors (see below), whose sum is σ = 37682460816. Its totient is φ = 3162160512.

The previous prime is 12140445413. The next prime is 12140445437. The reversal of 12140445420 is 2454404121.

12140445420 is a `hidden beast` number, since 1 + 214 + 0 + 445 + 4 + 2 + 0 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 776527 + ... + 792006.

Almost surely, 2^12140445420 is an apocalyptic number.

12140445420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12140445420 is an abundant number, since it is smaller than the sum of its proper divisors (25542015396).

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

12140445420 is a wasteful number, since it uses less digits than its factorization.

12140445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568591 (or 1568586 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 12140445420 its reverse (2454404121), we get a palindrome (14594849541).

The spelling of 12140445420 in words is "twelve billion, one hundred forty million, four hundred forty-five thousand, four hundred twenty".