131021220413015 has 8 divisors (see below), whose sum is σ = 162297253673088. Its totient is φ = 101435783545440.

The previous prime is 131021220412997. The next prime is 131021220413053. The reversal of 131021220413015 is 510314022120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131021220413015 - 2¹⁸ = 131021220150871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422649097952 + ... + 422649098261.

It is an arithmetic number, because the mean of its divisors is an integer number (20287156709136).

Almost surely, 2^{131021220413015} is an apocalyptic number.

131021220413015 is a deficient number, since it is larger than the sum of its proper divisors (31276033260073).

131021220413015 is an equidigital number, since it uses as much as digits as its factorization.

131021220413015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845298196249.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 131021220413015 its reverse (510314022120131), we get a palindrome (641335242533146).

The spelling of 131021220413015 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred twenty million, four hundred thirteen thousand, fifteen".