131220532350331 has 8 divisors (see below), whose sum is σ = 134272364277744. Its totient is φ = 128168709133920.

The previous prime is 131220532350263. The next prime is 131220532350373. The reversal of 131220532350331 is 133053235022131.

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

It is a cyclic number.

It is not a de Polignac number, because 131220532350331 - 2²¹ = 131220530253179 is a prime.

It is a super-2 number, since 2×131220532350331² (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 (131220532350731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35989041 + ... + 39467101.

It is an arithmetic number, because the mean of its divisors is an integer number (16784045534718).

Almost surely, 2^{131220532350331} is an apocalyptic number.

131220532350331 is a deficient number, since it is larger than the sum of its proper divisors (3051831927413).

131220532350331 is an equidigital number, since it uses as much as digits as its factorization.

131220532350331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355501.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 131220532350331 its reverse (133053235022131), we get a palindrome (264273767372462).

The spelling of 131220532350331 in words is "one hundred thirty-one trillion, two hundred twenty billion, five hundred thirty-two million, three hundred fifty thousand, three hundred thirty-one".