131441885481 has 4 divisors (see below), whose sum is σ = 175255847312. Its totient is φ = 87627923652.

The previous prime is 131441885447. The next prime is 131441885483. The reversal of 131441885481 is 184588144131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131441885481 - 2⁶ = 131441885417 is a prime.

It is a super-2 number, since 2×131441885481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131441885481.

It is not an unprimeable number, because it can be changed into a prime (131441885483) 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, 21906980911 + ... + 21906980916.

It is an arithmetic number, because the mean of its divisors is an integer number (43813961828).

Almost surely, 2^131441885481 is an apocalyptic number.

It is an amenable number.

131441885481 is a deficient number, since it is larger than the sum of its proper divisors (43813961831).

131441885481 is an equidigital number, since it uses as much as digits as its factorization.

131441885481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43813961830.

The product of its digits is 491520, while the sum is 48.

The spelling of 131441885481 in words is "one hundred thirty-one billion, four hundred forty-one million, eight hundred eighty-five thousand, four hundred eighty-one".