131115210144405 has 16 divisors (see below), whose sum is σ = 211947061349184. Its totient is φ = 69207203704320.

The previous prime is 131115210144389. The next prime is 131115210144427. The reversal of 131115210144405 is 504441012511131.

It is not a de Polignac number, because 131115210144405 - 2⁴ = 131115210144389 is a prime.

It is a super-2 number, since 2×131115210144405² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45056771791 + ... + 45056774700.

It is an arithmetic number, because the mean of its divisors is an integer number (13246691334324).

Almost surely, 2^{131115210144405} is an apocalyptic number.

131115210144405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131115210144405 is a deficient number, since it is larger than the sum of its proper divisors (80831851204779).

131115210144405 is an equidigital number, since it uses as much as digits as its factorization.

131115210144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90113546596.

The product of its (nonzero) digits is 9600, while the sum is 33.

Adding to 131115210144405 its reverse (504441012511131), we get a palindrome (635556222655536).

The spelling of 131115210144405 in words is "one hundred thirty-one trillion, one hundred fifteen billion, two hundred ten million, one hundred forty-four thousand, four hundred five".