4123201421503 has 12 divisors (see below), whose sum is σ = 4191466022688. Its totient is φ = 4055985161280.

The previous prime is 4123201421473. The next prime is 4123201421533. The reversal of 4123201421503 is 3051241023214.

It is an interprime number because it is at equal distance from previous prime (4123201421473) and next prime (4123201421533).

It is not a de Polignac number, because 4123201421503 - 2¹³ = 4123201413311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123201421533) 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 11 ways as a sum of consecutive naturals, for example, 472375 + ... + 2910247.

It is an arithmetic number, because the mean of its divisors is an integer number (349288835224).

Almost surely, 2^{4123201421503} is an apocalyptic number.

4123201421503 is a deficient number, since it is larger than the sum of its proper divisors (68264601185).

4123201421503 is an equidigital number, since it uses as much as digits as its factorization.

4123201421503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438302 (or 2438223 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 4123201421503 its reverse (3051241023214), we get a palindrome (7174442444717).

The spelling of 4123201421503 in words is "four trillion, one hundred twenty-three billion, two hundred one million, four hundred twenty-one thousand, five hundred three".