131423130220243 has 16 divisors (see below), whose sum is σ = 142270283761920. Its totient is φ = 120978049330656.

The previous prime is 131423130220237. The next prime is 131423130220279. The reversal of 131423130220243 is 342022031324131.

It is a cyclic number.

It is not a de Polignac number, because 131423130220243 - 2²⁵ = 131423096665811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131423130227243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125282605 + ... + 126327262.

It is an arithmetic number, because the mean of its divisors is an integer number (8891892735120).

Almost surely, 2^{131423130220243} is an apocalyptic number.

131423130220243 is a deficient number, since it is larger than the sum of its proper divisors (10847153541677).

131423130220243 is a wasteful number, since it uses less digits than its factorization.

131423130220243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251610666.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131423130220243 its reverse (342022031324131), we get a palindrome (473445161544374).

The spelling of 131423130220243 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, one hundred thirty million, two hundred twenty thousand, two hundred forty-three".