131200310105 has 16 divisors (see below), whose sum is σ = 158468351184. Its totient is φ = 104275142400.

The previous prime is 131200310053. The next prime is 131200310141. The reversal of 131200310105 is 501013002131.

It can be written as a sum of positive squares in 8 ways, for example, as 5552038144 + 125648271961 = 74512^2 + 354469^2 .

It is not a de Polignac number, because 131200310105 - 2¹² = 131200306009 is a prime.

It is a super-2 number, since 2×131200310105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 8040455 + ... + 8056755.

It is an arithmetic number, because the mean of its divisors is an integer number (9904271949).

Almost surely, 2^131200310105 is an apocalyptic number.

It is an amenable number.

131200310105 is a deficient number, since it is larger than the sum of its proper divisors (27268041079).

131200310105 is a wasteful number, since it uses less digits than its factorization.

131200310105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26716.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 131200310105 its reverse (501013002131), we get a palindrome (632213312236).

The spelling of 131200310105 in words is "one hundred thirty-one billion, two hundred million, three hundred ten thousand, one hundred five".