131400424221224 has 8 divisors (see below), whose sum is σ = 246375795414810. Its totient is φ = 65700212110608.

The previous prime is 131400424221221. The next prime is 131400424221293. The reversal of 131400424221224 is 422122424004131.

It can be written as a sum of positive squares in only one way, i.e., 80518138776100 + 50882285445124 = 8973190^2 + 7133182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (131400424221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8212526513819 + ... + 8212526513834.

Almost surely, 2^{131400424221224} is an apocalyptic number.

It is an amenable number.

131400424221224 is a deficient number, since it is larger than the sum of its proper divisors (114975371193586).

131400424221224 is a wasteful number, since it uses less digits than its factorization.

131400424221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16425053027659 (or 16425053027655 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 131400424221224 its reverse (422122424004131), we get a palindrome (553522848225355).

The spelling of 131400424221224 in words is "one hundred thirty-one trillion, four hundred billion, four hundred twenty-four million, two hundred twenty-one thousand, two hundred twenty-four".