131223103132241 has 4 divisors (see below), whose sum is σ = 131360797889892. Its totient is φ = 131085408374592.

The previous prime is 131223103132111. The next prime is 131223103132343. The reversal of 131223103132241 is 142231301322131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90043417352641 + 41179685779600 = 9489121^2 + 6417140^2 .

It is a cyclic number.

It is not a de Polignac number, because 131223103132241 - 2⁴⁶ = 60854358954577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131223103192241) 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, 68847377396 + ... + 68847379301.

It is an arithmetic number, because the mean of its divisors is an integer number (32840199472473).

Almost surely, 2^{131223103132241} is an apocalyptic number.

It is an amenable number.

131223103132241 is a deficient number, since it is larger than the sum of its proper divisors (137694757651).

131223103132241 is an equidigital number, since it uses as much as digits as its factorization.

131223103132241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137694757650.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 131223103132241 its reverse (142231301322131), we get a palindrome (273454404454372).

The spelling of 131223103132241 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, one hundred three million, one hundred thirty-two thousand, two hundred forty-one".