131103343541 has 4 divisors (see below), whose sum is σ = 131492374572. Its totient is φ = 130714312512.

The previous prime is 131103343531. The next prime is 131103343561. The reversal of 131103343541 is 145343301131.

It is a happy number.

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 46143336100 + 84960007441 = 214810^2 + 291479^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103343541 - 2¹⁸ = 131103081397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103343531) 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, 194515010 + ... + 194515683.

It is an arithmetic number, because the mean of its divisors is an integer number (32873093643).

Almost surely, 2^131103343541 is an apocalyptic number.

It is an amenable number.

131103343541 is a deficient number, since it is larger than the sum of its proper divisors (389031031).

131103343541 is an equidigital number, since it uses as much as digits as its factorization.

131103343541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389031030.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 131103343541 its reverse (145343301131), we get a palindrome (276446644672).

The spelling of 131103343541 in words is "one hundred thirty-one billion, one hundred three million, three hundred forty-three thousand, five hundred forty-one".