131020441 has 8 divisors (see below), whose sum is σ = 137692544. Its totient is φ = 124513200.

The previous prime is 131020433. The next prime is 131020451. The reversal of 131020441 is 144020131.

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 131020441 - 2³ = 131020433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131020451) 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, 39585 + ... + 42766.

It is an arithmetic number, because the mean of its divisors is an integer number (17211568).

Almost surely, 2^131020441 is an apocalyptic number.

It is an amenable number.

131020441 is a deficient number, since it is larger than the sum of its proper divisors (6672103).

131020441 is an equidigital number, since it uses as much as digits as its factorization.

131020441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82431.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 131020441 is about 11446.4160766591. The cubic root of 131020441 is about 507.9017224169.

Adding to 131020441 its reverse (144020131), we get a palindrome (275040572).

The spelling of 131020441 in words is "one hundred thirty-one million, twenty thousand, four hundred forty-one".