131275618305 has 32 divisors (see below), whose sum is σ = 226215607296. Its totient is φ = 64622962944.

The previous prime is 131275618223. The next prime is 131275618307. The reversal of 131275618305 is 503816572131.

It is not a de Polignac number, because 131275618305 - 2¹¹ = 131275616257 is a prime.

It is a super-2 number, since 2×131275618305² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131275618307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4363344 + ... + 4393326.

It is an arithmetic number, because the mean of its divisors is an integer number (7069237728).

Almost surely, 2^131275618305 is an apocalyptic number.

131275618305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131275618305 is a deficient number, since it is larger than the sum of its proper divisors (94939988991).

131275618305 is a wasteful number, since it uses less digits than its factorization.

131275618305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52457.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 131275618305 in words is "one hundred thirty-one billion, two hundred seventy-five million, six hundred eighteen thousand, three hundred five".