131423445145544 has 32 divisors (see below), whose sum is σ = 254703676046400. Its totient is φ = 63538981523520.

The previous prime is 131423445145543. The next prime is 131423445145567. The reversal of 131423445145544 is 445541544324131.

It is a junction number, because it is equal to n+sod(n) for n = 131423445145492 and 131423445145501.

It is not an unprimeable number, because it can be changed into a prime (131423445145543) 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, 2282262212 + ... + 2282319795.

It is an arithmetic number, because the mean of its divisors is an integer number (7959489876450).

Almost surely, 2^{131423445145544} is an apocalyptic number.

It is an amenable number.

131423445145544 is a deficient number, since it is larger than the sum of its proper divisors (123280230900856).

131423445145544 is a wasteful number, since it uses less digits than its factorization.

131423445145544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564582133 (or 4564582129 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 50.

Adding to 131423445145544 its reverse (445541544324131), we get a palindrome (576964989469675).

The spelling of 131423445145544 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, four hundred forty-five million, one hundred forty-five thousand, five hundred forty-four".