131023103314321 has 4 divisors (see below), whose sum is σ = 131023431245092. Its totient is φ = 131022775383552.

The previous prime is 131023103314307. The next prime is 131023103314373. The reversal of 131023103314321 is 123413301320131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70659760036096 + 60363343278225 = 8405936^2 + 7769385^2 .

It is a cyclic number.

It is not a de Polignac number, because 131023103314321 - 2⁵ = 131023103314289 is a prime.

It is a super-2 number, since 2×131023103314321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131023103314321.

It is not an unprimeable number, because it can be changed into a prime (131023103314921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163365336 + ... + 164165401.

It is an arithmetic number, because the mean of its divisors is an integer number (32755857811273).

Almost surely, 2^{131023103314321} is an apocalyptic number.

It is an amenable number.

131023103314321 is a deficient number, since it is larger than the sum of its proper divisors (327930771).

131023103314321 is an equidigital number, since it uses as much as digits as its factorization.

131023103314321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327930770.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131023103314321 its reverse (123413301320131), we get a palindrome (254436404634452).

The spelling of 131023103314321 in words is "one hundred thirty-one trillion, twenty-three billion, one hundred three million, three hundred fourteen thousand, three hundred twenty-one".