131000232321 has 36 divisors (see below), whose sum is σ = 220181676624. Its totient is φ = 74834953200.

The previous prime is 131000232301. The next prime is 131000232401. The reversal of 131000232321 is 123232000131.

131000232321 is a `hidden beast` number, since 1 + 310 + 0 + 0 + 2 + 32 + 321 = 666.

It is not a de Polignac number, because 131000232321 - 2⁹ = 131000231809 is a prime.

It is a super-2 number, since 2×131000232321² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131000232294 and 131000232303.

It is not an unprimeable number, because it can be changed into a prime (131000232301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1496986 + ... + 1582076.

It is an arithmetic number, because the mean of its divisors is an integer number (6116157684).

Almost surely, 2^131000232321 is an apocalyptic number.

It is an amenable number.

131000232321 is a deficient number, since it is larger than the sum of its proper divisors (89181444303).

131000232321 is a wasteful number, since it uses less digits than its factorization.

131000232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88602 (or 88592 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131000232321 its reverse (123232000131), we get a palindrome (254232232452).

The spelling of 131000232321 in words is "one hundred thirty-one billion, two hundred thirty-two thousand, three hundred twenty-one".