131220412441 has 16 divisors (see below), whose sum is σ = 134233344000. Its totient is φ = 128247283008.

The previous prime is 131220412439. The next prime is 131220412459. The reversal of 131220412441 is 144214022131.

It is a cyclic number.

It is not a de Polignac number, because 131220412441 - 2¹ = 131220412439 is a prime.

It is a super-2 number, since 2×131220412441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131220412471) 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 15 ways as a sum of consecutive naturals, for example, 3429880 + ... + 3467926.

It is an arithmetic number, because the mean of its divisors is an integer number (8389584000).

Almost surely, 2^131220412441 is an apocalyptic number.

It is an amenable number.

131220412441 is a deficient number, since it is larger than the sum of its proper divisors (3012931559).

131220412441 is a wasteful number, since it uses less digits than its factorization.

131220412441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38568.

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

Adding to 131220412441 its reverse (144214022131), we get a palindrome (275434434572).

The spelling of 131220412441 in words is "one hundred thirty-one billion, two hundred twenty million, four hundred twelve thousand, four hundred forty-one".