201210421103 has 24 divisors (see below), whose sum is σ = 208176490368. Its totient is φ = 194437334000.

The previous prime is 201210421099. The next prime is 201210421109. The reversal of 201210421103 is 301124012102.

It is not a de Polignac number, because 201210421103 - 2² = 201210421099 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 (201210421109) 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, 54808958 + ... + 54812628.

It is an arithmetic number, because the mean of its divisors is an integer number (8674020432).

Almost surely, 2^201210421103 is an apocalyptic number.

201210421103 is a deficient number, since it is larger than the sum of its proper divisors (6966069265).

201210421103 is an equidigital number, since it uses as much as digits as its factorization.

201210421103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201210421103 its reverse (301124012102), we get a palindrome (502334433205).

The spelling of 201210421103 in words is "two hundred one billion, two hundred ten million, four hundred twenty-one thousand, one hundred three".