131223122133 has 16 divisors (see below), whose sum is σ = 178347894336. Its totient is φ = 85806406400.

The previous prime is 131223122117. The next prime is 131223122201. The reversal of 131223122133 is 331221322131.

It is a cyclic number.

It is not a de Polignac number, because 131223122133 - 2⁴ = 131223122117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223122113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1991316 + ... + 2056157.

It is an arithmetic number, because the mean of its divisors is an integer number (11146743396).

Almost surely, 2^131223122133 is an apocalyptic number.

It is an amenable number.

131223122133 is a deficient number, since it is larger than the sum of its proper divisors (47124772203).

131223122133 is a wasteful number, since it uses less digits than its factorization.

131223122133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047684.

The product of its digits is 1296, while the sum is 24.

Adding to 131223122133 its reverse (331221322131), we get a palindrome (462444444264).

The spelling of 131223122133 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-three".