131442313501 has 8 divisors (see below), whose sum is σ = 137837477880. Its totient is φ = 125171327232.

The previous prime is 131442313489. The next prime is 131442313523. The reversal of 131442313501 is 105313244131.

It can be written as a sum of positive squares in 4 ways, for example, as 21582548100 + 109859765401 = 146910^2 + 331451^2 .

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 131442313501 - 2²³ = 131433924893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131442313501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131442313571) 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, 31042360 + ... + 31046593.

It is an arithmetic number, because the mean of its divisors is an integer number (17229684735).

Almost surely, 2^131442313501 is an apocalyptic number.

It is an amenable number.

131442313501 is a deficient number, since it is larger than the sum of its proper divisors (6395164379).

131442313501 is an equidigital number, since it uses as much as digits as its factorization.

131442313501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62089055.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 131442313501 its reverse (105313244131), we get a palindrome (236755557632).

The spelling of 131442313501 in words is "one hundred thirty-one billion, four hundred forty-two million, three hundred thirteen thousand, five hundred one".