131020322223213 has 12 divisors (see below), whose sum is σ = 189304781982108. Its totient is φ = 87322325126400.

The previous prime is 131020322223209. The next prime is 131020322223223. The reversal of 131020322223213 is 312322223020131.

131020322223213 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 203 + 22 + 223 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20469670532964 + 110550651690249 = 4524342^2 + 10514307^2 .

It is not a de Polignac number, because 131020322223213 - 2² = 131020322223209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020322223223) 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, 2046329188 + ... + 2046393213.

It is an arithmetic number, because the mean of its divisors is an integer number (15775398498509).

Almost surely, 2^{131020322223213} is an apocalyptic number.

It is an amenable number.

131020322223213 is a deficient number, since it is larger than the sum of its proper divisors (58284459758895).

131020322223213 is a wasteful number, since it uses less digits than its factorization.

131020322223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092725964 (or 4092725961 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131020322223213 its reverse (312322223020131), we get a palindrome (443342545243344).

The spelling of 131020322223213 in words is "one hundred thirty-one trillion, twenty billion, three hundred twenty-two million, two hundred twenty-three thousand, two hundred thirteen".