131021310011 has 4 divisors (see below), whose sum is σ = 138728445912. Its totient is φ = 123314174112.

The previous prime is 131021309981. The next prime is 131021310053. The reversal of 131021310011 is 110013120131.

It is a happy number.

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 131021310011 - 2¹⁰ = 131021308987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131021312011) 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, 3853567925 + ... + 3853567958.

It is an arithmetic number, because the mean of its divisors is an integer number (34682111478).

Almost surely, 2^131021310011 is an apocalyptic number.

131021310011 is a deficient number, since it is larger than the sum of its proper divisors (7707135901).

131021310011 is an equidigital number, since it uses as much as digits as its factorization.

131021310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707135900.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 131021310011 its reverse (110013120131), we get a palindrome (241034430142).

The spelling of 131021310011 in words is "one hundred thirty-one billion, twenty-one million, three hundred ten thousand, eleven".