131331441405 has 8 divisors (see below), whose sum is σ = 210130306272. Its totient is φ = 70043435408.

The previous prime is 131331441403. The next prime is 131331441427. The reversal of 131331441405 is 504144133131.

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 131331441405 - 2¹ = 131331441403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331441403) 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, 4377714699 + ... + 4377714728.

It is an arithmetic number, because the mean of its divisors is an integer number (26266288284).

Almost surely, 2^131331441405 is an apocalyptic number.

131331441405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131331441405 is a deficient number, since it is larger than the sum of its proper divisors (78798864867).

131331441405 is an equidigital number, since it uses as much as digits as its factorization.

131331441405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755429435.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 131331441405 its reverse (504144133131), we get a palindrome (635475574536).

The spelling of 131331441405 in words is "one hundred thirty-one billion, three hundred thirty-one million, four hundred forty-one thousand, four hundred five".