131421354321 has 16 divisors (see below), whose sum is σ = 183542363136. Its totient is φ = 83486260176.

The previous prime is 131421354307. The next prime is 131421354349. The reversal of 131421354321 is 123453124131.

It is not a de Polignac number, because 131421354321 - 2⁶ = 131421354257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131421354301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3602875 + ... + 3639168.

It is an arithmetic number, because the mean of its divisors is an integer number (11471397696).

Almost surely, 2^131421354321 is an apocalyptic number.

It is an amenable number.

131421354321 is a deficient number, since it is larger than the sum of its proper divisors (52121008815).

131421354321 is a wasteful number, since it uses less digits than its factorization.

131421354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242332.

The product of its digits is 8640, while the sum is 30.

Adding to 131421354321 its reverse (123453124131), we get a palindrome (254874478452).

The spelling of 131421354321 in words is "one hundred thirty-one billion, four hundred twenty-one million, three hundred fifty-four thousand, three hundred twenty-one".