131321230341001 has 4 divisors (see below), whose sum is σ = 139046008596372. Its totient is φ = 123596452085632.

The previous prime is 131321230340977. The next prime is 131321230341011. The reversal of 131321230341001 is 100143032123131.

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 50051365940601 + 81269864400400 = 7074699^2 + 9014980^2 .

It is a cyclic number.

It is not a de Polignac number, because 131321230341001 - 2²⁹ = 131320693470089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131321230341011) 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, 3862389127660 + ... + 3862389127693.

It is an arithmetic number, because the mean of its divisors is an integer number (34761502149093).

Almost surely, 2^{131321230341001} is an apocalyptic number.

It is an amenable number.

131321230341001 is a deficient number, since it is larger than the sum of its proper divisors (7724778255371).

131321230341001 is an equidigital number, since it uses as much as digits as its factorization.

131321230341001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7724778255370.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131321230341001 its reverse (100143032123131), we get a palindrome (231464262464132).

The spelling of 131321230341001 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, two hundred thirty million, three hundred forty-one thousand, one".