131143122231443 has 16 divisors (see below), whose sum is σ = 152315166888960. Its totient is φ = 110590533144000.

The previous prime is 131143122231431. The next prime is 131143122231463. The reversal of 131143122231443 is 344132221341131.

It is not a de Polignac number, because 131143122231443 - 2³² = 131138827264147 is a prime.

It is a super-2 number, since 2×131143122231443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131143122231463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421817033 + ... + 422127818.

It is an arithmetic number, because the mean of its divisors is an integer number (9519697930560).

Almost surely, 2^{131143122231443} is an apocalyptic number.

131143122231443 is a deficient number, since it is larger than the sum of its proper divisors (21172044657517).

131143122231443 is an equidigital number, since it uses as much as digits as its factorization.

131143122231443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843945218.

The product of its digits is 41472, while the sum is 35.

Adding to 131143122231443 its reverse (344132221341131), we get a palindrome (475275343572574).

The spelling of 131143122231443 in words is "one hundred thirty-one trillion, one hundred forty-three billion, one hundred twenty-two million, two hundred thirty-one thousand, four hundred forty-three".