131011120240401 has 4 divisors (see below), whose sum is σ = 174681493653872. Its totient is φ = 87340746826932.

The previous prime is 131011120240331. The next prime is 131011120240439. The reversal of 131011120240401 is 104042021110131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131011120240401 - 2²⁶ = 131011053131537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011120240471) 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, 21835186706731 + ... + 21835186706736.

It is an arithmetic number, because the mean of its divisors is an integer number (43670373413468).

Almost surely, 2^{131011120240401} is an apocalyptic number.

It is an amenable number.

131011120240401 is a deficient number, since it is larger than the sum of its proper divisors (43670373413471).

131011120240401 is an equidigital number, since it uses as much as digits as its factorization.

131011120240401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670373413470.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 131011120240401 its reverse (104042021110131), we get a palindrome (235053141350532).

The spelling of 131011120240401 in words is "one hundred thirty-one trillion, eleven billion, one hundred twenty million, two hundred forty thousand, four hundred one".