131011443223209 has 12 divisors (see below), whose sum is σ = 199198685602800. Its totient is φ = 82744069404024.

The previous prime is 131011443223207. The next prime is 131011443223229. The reversal of 131011443223209 is 902322344110131.

131011443223209 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 1 + 1 + 4 + 4 + 322 + 320 + 9 = 666.

It is not a de Polignac number, because 131011443223209 - 2¹ = 131011443223207 is a prime.

It is a super-4 number, since 4×131011443223209⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (131011443223207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383074395219 + ... + 383074395560.

It is an arithmetic number, because the mean of its divisors is an integer number (16599890466900).

Almost surely, 2^{131011443223209} is an apocalyptic number.

131011443223209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

131011443223209 is a deficient number, since it is larger than the sum of its proper divisors (68187242379591).

131011443223209 is a wasteful number, since it uses less digits than its factorization.

131011443223209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766148790804 (or 766148790801 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 131011443223209 in words is "one hundred thirty-one trillion, eleven billion, four hundred forty-three million, two hundred twenty-three thousand, two hundred nine".