201231132103 has 4 divisors (see below), whose sum is σ = 205512645600. Its totient is φ = 196949618608.

The previous prime is 201231132083. The next prime is 201231132119. The reversal of 201231132103 is 301231132102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301231132102 = 2 ⋅150615566051.

It is a cyclic number.

It is not a de Polignac number, because 201231132103 - 2³⁷ = 63792178631 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 (201231130103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140756678 + ... + 2140756771.

It is an arithmetic number, because the mean of its divisors is an integer number (51378161400).

Almost surely, 2^201231132103 is an apocalyptic number.

201231132103 is a deficient number, since it is larger than the sum of its proper divisors (4281513497).

201231132103 is an equidigital number, since it uses as much as digits as its factorization.

201231132103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281513496.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201231132103 its reverse (301231132102), we get a palindrome (502462264205).

Subtracting 201231132103 from its reverse (301231132102), we obtain a palindrome (99999999999).

The spelling of 201231132103 in words is "two hundred one billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred three".