131001115305 has 16 divisors (see below), whose sum is σ = 210989879424. Its totient is φ = 69404563200.

The previous prime is 131001115291. The next prime is 131001115327. The reversal of 131001115305 is 503511100131.

It is not a de Polignac number, because 131001115305 - 2⁷ = 131001115177 is a prime.

It is a super-2 number, since 2×131001115305² (a number of 23 digits) contains 22 as substring.

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, 28916304 + ... + 28920833.

It is an arithmetic number, because the mean of its divisors is an integer number (13186867464).

Almost surely, 2^131001115305 is an apocalyptic number.

131001115305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131001115305 is a deficient number, since it is larger than the sum of its proper divisors (79988764119).

131001115305 is a wasteful number, since it uses less digits than its factorization.

131001115305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57837296.

The product of its (nonzero) digits is 225, while the sum is 21.

Adding to 131001115305 its reverse (503511100131), we get a palindrome (634512215436).

The spelling of 131001115305 in words is "one hundred thirty-one billion, one million, one hundred fifteen thousand, three hundred five".