131044401343 has 4 divisors (see below), whose sum is σ = 135271640128. Its totient is φ = 126817162560.

The previous prime is 131044401337. The next prime is 131044401359. The reversal of 131044401343 is 343104440131.

It is a happy number.

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 131044401343 - 2²¹ = 131042304191 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 (131044408343) 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, 2113619346 + ... + 2113619407.

It is an arithmetic number, because the mean of its divisors is an integer number (33817910032).

Almost surely, 2^131044401343 is an apocalyptic number.

131044401343 is a deficient number, since it is larger than the sum of its proper divisors (4227238785).

131044401343 is an equidigital number, since it uses as much as digits as its factorization.

131044401343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227238784.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131044401343 its reverse (343104440131), we get a palindrome (474148841474).

The spelling of 131044401343 in words is "one hundred thirty-one billion, forty-four million, four hundred one thousand, three hundred forty-three".