131369240491 has 8 divisors (see below), whose sum is σ = 131762253600. Its totient is φ = 130976553600.

The previous prime is 131369240437. The next prime is 131369240549. The reversal of 131369240491 is 194042963131.

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 131369240491 - 2¹¹ = 131369238443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131369210491) 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, 737305 + ... + 897973.

It is an arithmetic number, because the mean of its divisors is an integer number (16470281700).

Almost surely, 2^131369240491 is an apocalyptic number.

131369240491 is a deficient number, since it is larger than the sum of its proper divisors (393013109).

131369240491 is a wasteful number, since it uses less digits than its factorization.

131369240491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163109.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 131369240491 in words is "one hundred thirty-one billion, three hundred sixty-nine million, two hundred forty thousand, four hundred ninety-one".