131523333161 has 8 divisors (see below), whose sum is σ = 143905760544. Its totient is φ = 119211865920.

The previous prime is 131523333157. The next prime is 131523333173. The reversal of 131523333161 is 161333325131.

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 131523333161 - 2² = 131523333157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131523333191) 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, 17736155 + ... + 17743568.

It is an arithmetic number, because the mean of its divisors is an integer number (17988220068).

Almost surely, 2^131523333161 is an apocalyptic number.

131523333161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131523333161 is a deficient number, since it is larger than the sum of its proper divisors (12382427383).

131523333161 is a wasteful number, since it uses less digits than its factorization.

131523333161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35480071.

The product of its digits is 14580, while the sum is 32.

Adding to 131523333161 its reverse (161333325131), we get a palindrome (292856658292).

The spelling of 131523333161 in words is "one hundred thirty-one billion, five hundred twenty-three million, three hundred thirty-three thousand, one hundred sixty-one".