131320000223201 has 4 divisors (see below), whose sum is σ = 131482324080900. Its totient is φ = 131157676365504.

The previous prime is 131320000223197. The next prime is 131320000223317. The reversal of 131320000223201 is 102322000023131.

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 63779150854225 + 67540849368976 = 7986185^2 + 8218324^2 .

It is a cyclic number.

It is not a de Polignac number, because 131320000223201 - 2² = 131320000223197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320000223701) 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, 81161927636 + ... + 81161929253.

It is an arithmetic number, because the mean of its divisors is an integer number (32870581020225).

Almost surely, 2^{131320000223201} is an apocalyptic number.

It is an amenable number.

131320000223201 is a deficient number, since it is larger than the sum of its proper divisors (162323857699).

131320000223201 is an equidigital number, since it uses as much as digits as its factorization.

131320000223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162323857698.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131320000223201 its reverse (102322000023131), we get a palindrome (233642000246332).

The spelling of 131320000223201 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred twenty-three thousand, two hundred one".