131201321132001 has 4 divisors (see below), whose sum is σ = 174935094842672. Its totient is φ = 87467547421332.

The previous prime is 131201321131981. The next prime is 131201321132017. The reversal of 131201321132001 is 100231123102131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131201321132001 - 2¹³ = 131201321123809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201321132801) 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, 21866886855331 + ... + 21866886855336.

It is an arithmetic number, because the mean of its divisors is an integer number (43733773710668).

Almost surely, 2^{131201321132001} is an apocalyptic number.

It is an amenable number.

131201321132001 is a deficient number, since it is larger than the sum of its proper divisors (43733773710671).

131201321132001 is an equidigital number, since it uses as much as digits as its factorization.

131201321132001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43733773710670.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131201321132001 its reverse (100231123102131), we get a palindrome (231432444234132).

The spelling of 131201321132001 in words is "one hundred thirty-one trillion, two hundred one billion, three hundred twenty-one million, one hundred thirty-two thousand, one".