21442414203 has 40 divisors (see below), whose sum is σ = 36629801472. Its totient is φ = 12245228784.

The previous prime is 21442414187. The next prime is 21442414219. The reversal of 21442414203 is 30241424412.

21442414203 is a `hidden beast` number, since 2 + 1 + 4 + 42 + 414 + 203 = 666.

It is an interprime number because it is at equal distance from previous prime (21442414187) and next prime (21442414219).

It is not a de Polignac number, because 21442414203 - 2⁴ = 21442414187 is a prime.

It is a super-2 number, since 2×21442414203² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21442414283) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 979726 + ... + 1001372.

Almost surely, 2^21442414203 is an apocalyptic number.

21442414203 is a deficient number, since it is larger than the sum of its proper divisors (15187387269).

21442414203 is a wasteful number, since it uses less digits than its factorization.

21442414203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23413 (or 23404 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 21442414203 its reverse (30241424412), we get a palindrome (51683838615).

The spelling of 21442414203 in words is "twenty-one billion, four hundred forty-two million, four hundred fourteen thousand, two hundred three".