131320220011 has 4 divisors (see below), whose sum is σ = 131321637000. Its totient is φ = 131318803024.

The previous prime is 131320219969. The next prime is 131320220023. The reversal of 131320220011 is 110022023131.

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

It is a cyclic number.

It is not a de Polignac number, because 131320220011 - 2¹³ = 131320211819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320220071) 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, 558961 + ... + 758338.

It is an arithmetic number, because the mean of its divisors is an integer number (32830409250).

Almost surely, 2^131320220011 is an apocalyptic number.

131320220011 is a deficient number, since it is larger than the sum of its proper divisors (1416989).

131320220011 is an equidigital number, since it uses as much as digits as its factorization.

131320220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416988.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131320220011 its reverse (110022023131), we get a palindrome (241342243142).

The spelling of 131320220011 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty thousand, eleven".