131000022105 has 32 divisors (see below), whose sum is σ = 218738257920. Its totient is φ = 66821304000.

The previous prime is 131000022073. The next prime is 131000022119. The reversal of 131000022105 is 501220000131.

It is not a de Polignac number, because 131000022105 - 2⁵ = 131000022073 is a prime.

It is a super-2 number, since 2×131000022105² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4109980 + ... + 4141730.

It is an arithmetic number, because the mean of its divisors is an integer number (6835570560).

Almost surely, 2^131000022105 is an apocalyptic number.

131000022105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131000022105 is a deficient number, since it is larger than the sum of its proper divisors (87738235815).

131000022105 is a wasteful number, since it uses less digits than its factorization.

131000022105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43741.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 131000022105 its reverse (501220000131), we get a palindrome (632220022236).

The spelling of 131000022105 in words is "one hundred thirty-one billion, twenty-two thousand, one hundred five".