131021003442340 has 48 divisors (see below), whose sum is σ = 303956666254080. Its totient is φ = 47040912622080.

The previous prime is 131021003442317. The next prime is 131021003442349. The reversal of 131021003442340 is 43244300120131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131021003442299 and 131021003442308.

It is not an unprimeable number, because it can be changed into a prime (131021003442349) 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 in 15 ways as a sum of consecutive naturals, for example, 3769286517 + ... + 3769321276.

It is an arithmetic number, because the mean of its divisors is an integer number (6332430546960).

Almost surely, 2^{131021003442340} is an apocalyptic number.

131021003442340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131021003442340 is an abundant number, since it is smaller than the sum of its proper divisors (172935662811740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131021003442340 is a wasteful number, since it uses less digits than its factorization.

131021003442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538607892 (or 7538607890 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131021003442340 its reverse (43244300120131), we get a palindrome (174265303562471).

The spelling of 131021003442340 in words is "one hundred thirty-one trillion, twenty-one billion, three million, four hundred forty-two thousand, three hundred forty".