131041243021 has 8 divisors (see below), whose sum is σ = 149422594104. Its totient is φ = 113845785600.

The previous prime is 131041243019. The next prime is 131041243049. The reversal of 131041243021 is 120342140131.

It can be written as a sum of positive squares in 4 ways, for example, as 39390340900 + 91650902121 = 198470^2 + 302739^2 .

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 131041243021 - 2¹ = 131041243019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131041242983 and 131041243001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131041243061) 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, 296473180 + ... + 296473621.

It is an arithmetic number, because the mean of its divisors is an integer number (18677824263).

Almost surely, 2^131041243021 is an apocalyptic number.

It is an amenable number.

131041243021 is a deficient number, since it is larger than the sum of its proper divisors (18381351083).

131041243021 is a wasteful number, since it uses less digits than its factorization.

131041243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592946831.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 131041243021 its reverse (120342140131), we get a palindrome (251383383152).

The spelling of 131041243021 in words is "one hundred thirty-one billion, forty-one million, two hundred forty-three thousand, twenty-one".