201012121210103 has 4 divisors (see below), whose sum is σ = 229728138525840. Its totient is φ = 172296103894368.

The previous prime is 201012121210073. The next prime is 201012121210129. The reversal of 201012121210103 is 301012121210102.

It is a happy number.

201012121210103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201012121210103 - 2⁸ = 201012121209847 is a prime.

It is a super-2 number, since 2×201012121210103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012121210133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14358008657858 + ... + 14358008657871.

It is an arithmetic number, because the mean of its divisors is an integer number (57432034631460).

Almost surely, 2^{201012121210103} is an apocalyptic number.

201012121210103 is a deficient number, since it is larger than the sum of its proper divisors (28716017315737).

201012121210103 is an equidigital number, since it uses as much as digits as its factorization.

201012121210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28716017315736.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201012121210103 its reverse (301012121210102), we get a palindrome (502024242420205).

Subtracting 201012121210103 from its reverse (301012121210102), we obtain a palindrome (99999999999999).

The spelling of 201012121210103 in words is "two hundred one trillion, twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred three".