131211211202341 has 4 divisors (see below), whose sum is σ = 136916046472032. Its totient is φ = 125506375932652.

The previous prime is 131211211202311. The next prime is 131211211202377. The reversal of 131211211202341 is 143202112112131.

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 a cyclic number.

It is not a de Polignac number, because 131211211202341 - 2³¹ = 131209063718693 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 (131211211202311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2852417634811 + ... + 2852417634856.

It is an arithmetic number, because the mean of its divisors is an integer number (34229011618008).

Almost surely, 2^{131211211202341} is an apocalyptic number.

It is an amenable number.

131211211202341 is a deficient number, since it is larger than the sum of its proper divisors (5704835269691).

131211211202341 is an equidigital number, since it uses as much as digits as its factorization.

131211211202341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704835269690.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 131211211202341 its reverse (143202112112131), we get a palindrome (274413323314472).

The spelling of 131211211202341 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred eleven million, two hundred two thousand, three hundred forty-one".