131331420442215 has 160 divisors (see below), whose sum is σ = 270575966200320. Its totient is φ = 59698502841600.

The previous prime is 131331420442129. The next prime is 131331420442223. The reversal of 131331420442215 is 512244024133131.

131331420442215 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 3 + 1 + 420 + 4 + 4 + 221 + 5 = 666.

It is not a de Polignac number, because 131331420442215 - 2⁹ = 131331420441703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131331420442215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 663288180 + ... + 663486150.

It is an arithmetic number, because the mean of its divisors is an integer number (1691099788752).

Almost surely, 2^{131331420442215} is an apocalyptic number.

131331420442215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131331420442215 is an abundant number, since it is smaller than the sum of its proper divisors (139244545758105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131331420442215 is a wasteful number, since it uses less digits than its factorization.

131331420442215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199315 (or 199306 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 131331420442215 its reverse (512244024133131), we get a palindrome (643575444575346).

The spelling of 131331420442215 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, four hundred twenty million, four hundred forty-two thousand, two hundred fifteen".