131003523445 has 8 divisors (see below), whose sum is σ = 159781347000. Its totient is φ = 103084739520.

The previous prime is 131003523439. The next prime is 131003523451. The reversal of 131003523445 is 544325300131.

It is an interprime number because it is at equal distance from previous prime (131003523439) and next prime (131003523451).

It can be written as a sum of positive squares in 4 ways, for example, as 12264012049 + 118739511396 = 110743^2 + 344586^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131003523445 - 2⁹ = 131003522933 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 214759570 + ... + 214760179.

It is an arithmetic number, because the mean of its divisors is an integer number (19972668375).

Almost surely, 2^131003523445 is an apocalyptic number.

It is an amenable number.

131003523445 is a deficient number, since it is larger than the sum of its proper divisors (28777823555).

131003523445 is an equidigital number, since it uses as much as digits as its factorization.

131003523445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429519815.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 131003523445 its reverse (544325300131), we get a palindrome (675328823576).

The spelling of 131003523445 in words is "one hundred thirty-one billion, three million, five hundred twenty-three thousand, four hundred forty-five".