131201421042343 has 4 divisors (see below), whose sum is σ = 138106758991960. Its totient is φ = 124296083092728.

The previous prime is 131201421042269. The next prime is 131201421042347. The reversal of 131201421042343 is 343240124102131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131201421042343 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 (131201421042347) 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, 3452668974780 + ... + 3452668974817.

It is an arithmetic number, because the mean of its divisors is an integer number (34526689747990).

Almost surely, 2^{131201421042343} is an apocalyptic number.

131201421042343 is a deficient number, since it is larger than the sum of its proper divisors (6905337949617).

131201421042343 is an equidigital number, since it uses as much as digits as its factorization.

131201421042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905337949616.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 131201421042343 its reverse (343240124102131), we get a palindrome (474441545144474).

The spelling of 131201421042343 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, forty-two thousand, three hundred forty-three".