131204142241 has 8 divisors (see below), whose sum is σ = 133240282344. Its totient is φ = 129174456960.

The previous prime is 131204142163. The next prime is 131204142283. The reversal of 131204142241 is 142241402131.

It can be written as a sum of positive squares in 4 ways, for example, as 18962391616 + 112241750625 = 137704^2 + 335025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131204142241 - 2⁹ = 131204141729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131204142941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572730 + ... + 1654051.

It is an arithmetic number, because the mean of its divisors is an integer number (16655035293).

Almost surely, 2^131204142241 is an apocalyptic number.

It is an amenable number.

131204142241 is a deficient number, since it is larger than the sum of its proper divisors (2036140103).

131204142241 is an equidigital number, since it uses as much as digits as its factorization.

131204142241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227411.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 131204142241 its reverse (142241402131), we get a palindrome (273445544372).

The spelling of 131204142241 in words is "one hundred thirty-one billion, two hundred four million, one hundred forty-two thousand, two hundred forty-one".