131200300121321 has 4 divisors (see below), whose sum is σ = 134746254178692. Its totient is φ = 127654346063952.

The previous prime is 131200300121179. The next prime is 131200300121399. The reversal of 131200300121321 is 123121003002131.

It is a happy number.

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 99956224791721 + 31244075329600 = 9997811^2 + 5589640^2 .

It is a cyclic number.

It is not a de Polignac number, because 131200300121321 - 2¹⁰ = 131200300120297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131200300121293 and 131200300121302.

It is not an unprimeable number, because it can be changed into a prime (131200300120321) 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, 1772977028630 + ... + 1772977028703.

It is an arithmetic number, because the mean of its divisors is an integer number (33686563544673).

Almost surely, 2^{131200300121321} is an apocalyptic number.

It is an amenable number.

131200300121321 is a deficient number, since it is larger than the sum of its proper divisors (3545954057371).

131200300121321 is an equidigital number, since it uses as much as digits as its factorization.

131200300121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545954057370.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131200300121321 its reverse (123121003002131), we get a palindrome (254321303123452).

The spelling of 131200300121321 in words is "one hundred thirty-one trillion, two hundred billion, three hundred million, one hundred twenty-one thousand, three hundred twenty-one".