131221032323 has 8 divisors (see below), whose sum is σ = 131306337696. Its totient is φ = 131135760000.

The previous prime is 131221032311. The next prime is 131221032329. The reversal of 131221032323 is 323230122131.

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 131221032323 - 2⁸ = 131221032067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131221032329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17847098 + ... + 17854448.

It is an arithmetic number, because the mean of its divisors is an integer number (16413292212).

Almost surely, 2^131221032323 is an apocalyptic number.

131221032323 is a deficient number, since it is larger than the sum of its proper divisors (85305373).

131221032323 is an equidigital number, since it uses as much as digits as its factorization.

131221032323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131221032323 its reverse (323230122131), we get a palindrome (454451154454).

The spelling of 131221032323 in words is "one hundred thirty-one billion, two hundred twenty-one million, thirty-two thousand, three hundred twenty-three".