131323021033201 has 4 divisors (see below), whose sum is σ = 131351268622500. Its totient is φ = 131294773443904.

The previous prime is 131323021033189. The next prime is 131323021033273. The reversal of 131323021033201 is 102330120323131.

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 67891337744400 + 63431683288801 = 8239620^2 + 7964401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131323021033201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131323021033291) 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, 14123787676 + ... + 14123796973.

It is an arithmetic number, because the mean of its divisors is an integer number (32837817155625).

Almost surely, 2^{131323021033201} is an apocalyptic number.

It is an amenable number.

131323021033201 is a deficient number, since it is larger than the sum of its proper divisors (28247589299).

131323021033201 is an equidigital number, since it uses as much as digits as its factorization.

131323021033201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28247589298.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 131323021033201 its reverse (102330120323131), we get a palindrome (233653141356332).

The spelling of 131323021033201 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, twenty-one million, thirty-three thousand, two hundred one".