12014023420 has 144 divisors (see below), whose sum is σ = 30883349952. Its totient is φ = 3832289280.

The previous prime is 12014023409. The next prime is 12014023477. The reversal of 12014023420 is 2432041021.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 66375730 + ... + 66375910.

It is an arithmetic number, because the mean of its divisors is an integer number (214467708).

Almost surely, 2^12014023420 is an apocalyptic number.

12014023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12014023420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15441674976).

12014023420 is an abundant number, since it is smaller than the sum of its proper divisors (18869326532).

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

12014023420 is a wasteful number, since it uses less digits than its factorization.

12014023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12014023420 its reverse (2432041021), we get a palindrome (14446064441).

The spelling of 12014023420 in words is "twelve billion, fourteen million, twenty-three thousand, four hundred twenty".