131113011223 has 4 divisors (see below), whose sum is σ = 132070040640. Its totient is φ = 130155981808.

The previous prime is 131113011203. The next prime is 131113011259. The reversal of 131113011223 is 322110311131.

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 131113011223 - 2⁹ = 131113010711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131113011223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113011203) 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 3 ways as a sum of consecutive naturals, for example, 478514503 + ... + 478514776.

It is an arithmetic number, because the mean of its divisors is an integer number (33017510160).

Almost surely, 2^131113011223 is an apocalyptic number.

131113011223 is a deficient number, since it is larger than the sum of its proper divisors (957029417).

131113011223 is an equidigital number, since it uses as much as digits as its factorization.

131113011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957029416.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131113011223 its reverse (322110311131), we get a palindrome (453223322354).

The spelling of 131113011223 in words is "one hundred thirty-one billion, one hundred thirteen million, eleven thousand, two hundred twenty-three".