201232103105541 has 4 divisors (see below), whose sum is σ = 268309470807392. Its totient is φ = 134154735403692.

The previous prime is 201232103105437. The next prime is 201232103105549. The reversal of 201232103105541 is 145501301232102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 201232103105541 - 2⁴² = 196834056594437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201232103105499 and 201232103105508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201232103105549) 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, 33538683850921 + ... + 33538683850926.

It is an arithmetic number, because the mean of its divisors is an integer number (67077367701848).

Almost surely, 2^{201232103105541} is an apocalyptic number.

It is an amenable number.

201232103105541 is a deficient number, since it is larger than the sum of its proper divisors (67077367701851).

201232103105541 is an equidigital number, since it uses as much as digits as its factorization.

201232103105541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67077367701850.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 201232103105541 its reverse (145501301232102), we get a palindrome (346733404337643).

The spelling of 201232103105541 in words is "two hundred one trillion, two hundred thirty-two billion, one hundred three million, one hundred five thousand, five hundred forty-one".