131402325052105 has 4 divisors (see below), whose sum is σ = 157682790062532. Its totient is φ = 105121860041680.

The previous prime is 131402325052079. The next prime is 131402325052133. The reversal of 131402325052105 is 501250523204131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100711079611081 + 30691245441024 = 10035491^2 + 5539968^2 .

It is not a de Polignac number, because 131402325052105 - 2⁹ = 131402325051593 is a prime.

It is a super-2 number, since 2×131402325052105² (a number of 29 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 3 ways as a sum of consecutive naturals, for example, 13140232505206 + ... + 13140232505215.

It is an arithmetic number, because the mean of its divisors is an integer number (39420697515633).

Almost surely, 2^{131402325052105} is an apocalyptic number.

It is an amenable number.

131402325052105 is a deficient number, since it is larger than the sum of its proper divisors (26280465010427).

131402325052105 is an equidigital number, since it uses as much as digits as its factorization.

131402325052105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26280465010426.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 131402325052105 its reverse (501250523204131), we get a palindrome (632652848256236).

The spelling of 131402325052105 in words is "one hundred thirty-one trillion, four hundred two billion, three hundred twenty-five million, fifty-two thousand, one hundred five".