131023222213 has 8 divisors (see below), whose sum is σ = 141122689400. Its totient is φ = 120926720448.

The previous prime is 131023222189. The next prime is 131023222229. The reversal of 131023222213 is 312222320131.

It can be written as a sum of positive squares in 4 ways, for example, as 226713249 + 130796508964 = 15057^2 + 361658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131023222213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023222243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649158 + ... + 826711.

It is an arithmetic number, because the mean of its divisors is an integer number (17640336175).

Almost surely, 2^131023222213 is an apocalyptic number.

131023222213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131023222213 is a deficient number, since it is larger than the sum of its proper divisors (10099467187).

131023222213 is a wasteful number, since it uses less digits than its factorization.

131023222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482711.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131023222213 its reverse (312222320131), we get a palindrome (443245542344).

The spelling of 131023222213 in words is "one hundred thirty-one billion, twenty-three million, two hundred twenty-two thousand, two hundred thirteen".