20103201 has 16 divisors (see below), whose sum is σ = 29870400. Its totient is φ = 13362624.

The previous prime is 20103199. The next prime is 20103203. The reversal of 20103201 is 10230102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20103199) and next prime (20103203).

It is not a de Polignac number, because 20103201 - 2¹ = 20103199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20103203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10425 + ... + 12201.

It is an arithmetic number, because the mean of its divisors is an integer number (1866900).

Almost surely, 2^20103201 is an apocalyptic number.

It is an amenable number.

20103201 is a deficient number, since it is larger than the sum of its proper divisors (9767199).

20103201 is a wasteful number, since it uses less digits than its factorization.

20103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 20103201 is about 4483.6593313944. The cubic root of 20103201 is about 271.9078452589.

Adding to 20103201 its reverse (10230102), we get a palindrome (30333303).

The spelling of 20103201 in words is "twenty million, one hundred three thousand, two hundred one".