131023123321 has 8 divisors (see below), whose sum is σ = 137927273600. Its totient is φ = 124119792720.

The previous prime is 131023123307. The next prime is 131023123337. The reversal of 131023123321 is 123321320131.

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

It is a cyclic number.

It is not a de Polignac number, because 131023123321 - 2⁹ = 131023122809 is a prime.

It is a super-3 number, since 3×131023123321³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131023123292 and 131023123301.

It is not an unprimeable number, because it can be changed into a prime (131023123381) 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 7 ways as a sum of consecutive naturals, for example, 137920 + ... + 530158.

It is an arithmetic number, because the mean of its divisors is an integer number (17240909200).

Almost surely, 2^131023123321 is an apocalyptic number.

It is an amenable number.

131023123321 is a deficient number, since it is larger than the sum of its proper divisors (6904150279).

131023123321 is a wasteful number, since it uses less digits than its factorization.

131023123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409839.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131023123321 its reverse (123321320131), we get a palindrome (254344443452).

The spelling of 131023123321 in words is "one hundred thirty-one billion, twenty-three million, one hundred twenty-three thousand, three hundred twenty-one".