131104101223405 has 8 divisors (see below), whose sum is σ = 157666190280984. Its totient is φ = 104655768436800.

The previous prime is 131104101223363. The next prime is 131104101223441. The reversal of 131104101223405 is 504322101401131.

It can be written as a sum of positive squares in 4 ways, for example, as 38513269280836 + 92590831942569 = 6205906^2 + 9622413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131104101223405 - 2³³ = 131095511288813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28439065206 + ... + 28439069815.

It is an arithmetic number, because the mean of its divisors is an integer number (19708273785123).

Almost surely, 2^{131104101223405} is an apocalyptic number.

It is an amenable number.

131104101223405 is a deficient number, since it is larger than the sum of its proper divisors (26562089057579).

131104101223405 is an equidigital number, since it uses as much as digits as its factorization.

131104101223405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56878135487.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 131104101223405 its reverse (504322101401131), we get a palindrome (635426202624536).

The spelling of 131104101223405 in words is "one hundred thirty-one trillion, one hundred four billion, one hundred one million, two hundred twenty-three thousand, four hundred five".