131241440042401 has 4 divisors (see below), whose sum is σ = 141336935430292. Its totient is φ = 121145944654512.

The previous prime is 131241440042243. The next prime is 131241440042407. The reversal of 131241440042401 is 104240044142131.

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 23611086047376 + 107630353995025 = 4859124^2 + 10374505^2 .

It is a cyclic number.

It is not a de Polignac number, because 131241440042401 - 2⁴¹ = 129042416786849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131241440042407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5047747693926 + ... + 5047747693951.

It is an arithmetic number, because the mean of its divisors is an integer number (35334233857573).

Almost surely, 2^{131241440042401} is an apocalyptic number.

It is an amenable number.

131241440042401 is a deficient number, since it is larger than the sum of its proper divisors (10095495387891).

131241440042401 is a wasteful number, since it uses less digits than its factorization.

131241440042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095495387890.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 131241440042401 its reverse (104240044142131), we get a palindrome (235481484184532).

The spelling of 131241440042401 in words is "one hundred thirty-one trillion, two hundred forty-one billion, four hundred forty million, forty-two thousand, four hundred one".