131230310321 has 4 divisors (see below), whose sum is σ = 143160338544. Its totient is φ = 119300282100.

The previous prime is 131230310261. The next prime is 131230310329. The reversal of 131230310321 is 123013032131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131230310321 - 2⁶ = 131230310257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131230310293 and 131230310302.

It is not an unprimeable number, because it can be changed into a prime (131230310329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5965014095 + ... + 5965014116.

It is an arithmetic number, because the mean of its divisors is an integer number (35790084636).

Almost surely, 2^131230310321 is an apocalyptic number.

131230310321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131230310321 is a deficient number, since it is larger than the sum of its proper divisors (11930028223).

131230310321 is a wasteful number, since it uses less digits than its factorization.

131230310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11930028222.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131230310321 its reverse (123013032131), we get a palindrome (254243342452).

The spelling of 131230310321 in words is "one hundred thirty-one billion, two hundred thirty million, three hundred ten thousand, three hundred twenty-one".