131440343405441 has 8 divisors (see below), whose sum is σ = 156748732508544. Its totient is φ = 107764753599360.

The previous prime is 131440343405429. The next prime is 131440343405473. The reversal of 131440343405441 is 144504343044131.

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 131440343405441 - 2²⁶ = 131440276296577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440343405741) 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, 408199824080 + ... + 408199824401.

It is an arithmetic number, because the mean of its divisors is an integer number (19593591563568).

Almost surely, 2^{131440343405441} is an apocalyptic number.

It is an amenable number.

131440343405441 is a deficient number, since it is larger than the sum of its proper divisors (25308389103103).

131440343405441 is an equidigital number, since it uses as much as digits as its factorization.

131440343405441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816399648511.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 131440343405441 its reverse (144504343044131), we get a palindrome (275944686449572).

The spelling of 131440343405441 in words is "one hundred thirty-one trillion, four hundred forty billion, three hundred forty-three million, four hundred five thousand, four hundred forty-one".