12320201421 has 12 divisors (see below), whose sum is σ = 19413650880. Its totient is φ = 7466788680.

The previous prime is 12320201419. The next prime is 12320201431. The reversal of 12320201421 is 12410202321.

It is a happy number.

12320201421 is a `hidden beast` number, since 1 + 23 + 20 + 201 + 421 = 666.

It is not a de Polignac number, because 12320201421 - 2¹ = 12320201419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12320201394 and 12320201403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320201431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62223141 + ... + 62223338.

It is an arithmetic number, because the mean of its divisors is an integer number (1617804240).

Almost surely, 2^12320201421 is an apocalyptic number.

12320201421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12320201421 is a deficient number, since it is larger than the sum of its proper divisors (7093449459).

12320201421 is a wasteful number, since it uses less digits than its factorization.

12320201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124446496 (or 124446493 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12320201421 its reverse (12410202321), we get a palindrome (24730403742).

The spelling of 12320201421 in words is "twelve billion, three hundred twenty million, two hundred one thousand, four hundred twenty-one".