131262104447 has 4 divisors (see below), whose sum is σ = 138170636280. Its totient is φ = 124353572616.

The previous prime is 131262104431. The next prime is 131262104509. The reversal of 131262104447 is 744401262131.

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 131262104447 - 2⁴ = 131262104431 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 (131262104417) 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, 3454265888 + ... + 3454265925.

It is an arithmetic number, because the mean of its divisors is an integer number (34542659070).

Almost surely, 2^131262104447 is an apocalyptic number.

131262104447 is a deficient number, since it is larger than the sum of its proper divisors (6908531833).

131262104447 is an equidigital number, since it uses as much as digits as its factorization.

131262104447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908531832.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 131262104447 its reverse (744401262131), we get a palindrome (875663366578).

The spelling of 131262104447 in words is "one hundred thirty-one billion, two hundred sixty-two million, one hundred four thousand, four hundred forty-seven".