131002131303201 has 4 divisors (see below), whose sum is σ = 174669508404272. Its totient is φ = 87334754202132.

The previous prime is 131002131303181. The next prime is 131002131303269. The reversal of 131002131303201 is 102303131200131.

It is a happy number.

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 131002131303201 - 2¹⁰ = 131002131302177 is a prime.

It is a super-2 number, since 2×131002131303201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131002131303271) 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, 21833688550531 + ... + 21833688550536.

It is an arithmetic number, because the mean of its divisors is an integer number (43667377101068).

Almost surely, 2^{131002131303201} is an apocalyptic number.

It is an amenable number.

131002131303201 is a deficient number, since it is larger than the sum of its proper divisors (43667377101071).

131002131303201 is an equidigital number, since it uses as much as digits as its factorization.

131002131303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43667377101070.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131002131303201 its reverse (102303131200131), we get a palindrome (233305262503332).

The spelling of 131002131303201 in words is "one hundred thirty-one trillion, two billion, one hundred thirty-one million, three hundred three thousand, two hundred one".