131200122143 has 4 divisors (see below), whose sum is σ = 131206279248. Its totient is φ = 131193965040.

The previous prime is 131200122083. The next prime is 131200122161. The reversal of 131200122143 is 341221002131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131200122143 - 2¹² = 131200118047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200122643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3046478 + ... + 3089243.

It is an arithmetic number, because the mean of its divisors is an integer number (32801569812).

Almost surely, 2^131200122143 is an apocalyptic number.

131200122143 is a deficient number, since it is larger than the sum of its proper divisors (6157105).

131200122143 is an equidigital number, since it uses as much as digits as its factorization.

131200122143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157104.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131200122143 its reverse (341221002131), we get a palindrome (472421124274).

The spelling of 131200122143 in words is "one hundred thirty-one billion, two hundred million, one hundred twenty-two thousand, one hundred forty-three".