131331421000423 has 8 divisors (see below), whose sum is σ = 150105906399392. Its totient is φ = 112560149058336.

The previous prime is 131331421000411. The next prime is 131331421000433. The reversal of 131331421000423 is 324000124133131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131331421000423 - 2²¹ = 131331418903271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131331421000391 and 131331421000400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331421000433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803276640 + ... + 803440117.

It is an arithmetic number, because the mean of its divisors is an integer number (18763238299924).

Almost surely, 2^{131331421000423} is an apocalyptic number.

131331421000423 is a deficient number, since it is larger than the sum of its proper divisors (18774485398969).

131331421000423 is a wasteful number, since it uses less digits than its factorization.

131331421000423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606728441.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 131331421000423 its reverse (324000124133131), we get a palindrome (455331545133554).

The spelling of 131331421000423 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, four hundred twenty-one million, four hundred twenty-three", and thus it is an aban number.