12440020203 has 24 divisors (see below), whose sum is σ = 19956384240. Its totient is φ = 7655394240.

The previous prime is 12440020183. The next prime is 12440020223. The reversal of 12440020203 is 30202004421.

12440020203 is a `hidden beast` number, since 1 + 2 + 440 + 0 + 20 + 203 = 666.

It is an interprime number because it is at equal distance from previous prime (12440020183) and next prime (12440020223).

It is not a de Polignac number, because 12440020203 - 2¹⁴ = 12440003819 is a prime.

It is a super-2 number, since 2×12440020203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12440020223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1358578 + ... + 1367703.

It is an arithmetic number, because the mean of its divisors is an integer number (831516010).

Almost surely, 2^12440020203 is an apocalyptic number.

12440020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12440020203 is a deficient number, since it is larger than the sum of its proper divisors (7516364037).

12440020203 is a wasteful number, since it uses less digits than its factorization.

12440020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726316 (or 2726297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12440020203 its reverse (30202004421), we get a palindrome (42642024624).

The spelling of 12440020203 in words is "twelve billion, four hundred forty million, twenty thousand, two hundred three".