131041221316 has 24 divisors (see below), whose sum is σ = 238821975000. Its totient is φ = 62836698624.

The previous prime is 131041221313. The next prime is 131041221317. The reversal of 131041221316 is 613122140131.

It can be written as a sum of positive squares in 4 ways, for example, as 29273841216 + 101767380100 = 171096^2 + 319010^2 .

It is not an unprimeable number, because it can be changed into a prime (131041221313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773541 + ... + 3808108.

It is an arithmetic number, because the mean of its divisors is an integer number (9950915625).

Almost surely, 2^131041221316 is an apocalyptic number.

It is an amenable number.

131041221316 is a deficient number, since it is larger than the sum of its proper divisors (107780753684).

131041221316 is a wasteful number, since it uses less digits than its factorization.

131041221316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581831 (or 7581829 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131041221316 its reverse (613122140131), we get a palindrome (744163361447).

The spelling of 131041221316 in words is "one hundred thirty-one billion, forty-one million, two hundred twenty-one thousand, three hundred sixteen".