131042521011 has 4 divisors (see below), whose sum is σ = 174723361352. Its totient is φ = 87361680672.

The previous prime is 131042520937. The next prime is 131042521037. The reversal of 131042521011 is 110125240131.

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

It is not a de Polignac number, because 131042521011 - 2³³ = 122452586419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131042501011) 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, 21840420166 + ... + 21840420171.

It is an arithmetic number, because the mean of its divisors is an integer number (43680840338).

Almost surely, 2^131042521011 is an apocalyptic number.

131042521011 is a deficient number, since it is larger than the sum of its proper divisors (43680840341).

131042521011 is an equidigital number, since it uses as much as digits as its factorization.

131042521011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43680840340.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 131042521011 its reverse (110125240131), we get a palindrome (241167761142).

The spelling of 131042521011 in words is "one hundred thirty-one billion, forty-two million, five hundred twenty-one thousand, eleven".