201010121010103 has 4 divisors (see below), whose sum is σ = 207941504493240. Its totient is φ = 194078737526968.

The previous prime is 201010121010073. The next prime is 201010121010107. The reversal of 201010121010103 is 301010121010102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201010121010103 - 2³³ = 201001531075511 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 (201010121010107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3465691741525 + ... + 3465691741582.

It is an arithmetic number, because the mean of its divisors is an integer number (51985376123310).

Almost surely, 2^{201010121010103} is an apocalyptic number.

201010121010103 is a deficient number, since it is larger than the sum of its proper divisors (6931383483137).

201010121010103 is an equidigital number, since it uses as much as digits as its factorization.

201010121010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931383483136.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 201010121010103 its reverse (301010121010102), we get a palindrome (502020242020205).

Subtracting 201010121010103 from its reverse (301010121010102), we obtain a palindrome (99999999999999).

The spelling of 201010121010103 in words is "two hundred one trillion, ten billion, one hundred twenty-one million, ten thousand, one hundred three".