131021440224004 has 48 divisors (see below), whose sum is σ = 255784268226816. Its totient is φ = 58212662470400.

The previous prime is 131021440223983. The next prime is 131021440224071. The reversal of 131021440224004 is 400422044120131.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 39382417 + ... + 42579544.

It is an arithmetic number, because the mean of its divisors is an integer number (5328838921392).

Almost surely, 2^{131021440224004} is an apocalyptic number.

It is an amenable number.

131021440224004 is a deficient number, since it is larger than the sum of its proper divisors (124762828002812).

131021440224004 is a wasteful number, since it uses less digits than its factorization.

131021440224004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81962796 (or 81962794 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 131021440224004 its reverse (400422044120131), we get a palindrome (531443484344135).

The spelling of 131021440224004 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred forty million, two hundred twenty-four thousand, four".