111131210323213 has 4 divisors (see below), whose sum is σ = 111133092335328. Its totient is φ = 111129328311100.

The previous prime is 111131210323207. The next prime is 111131210323219. The reversal of 111131210323213 is 312323012131111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (111131210323207) and next prime (111131210323219).

It is a cyclic number.

It is not a de Polignac number, because 111131210323213 - 2³³ = 111122620388621 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 (111131210323219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940917481 + ... + 941035582.

It is an arithmetic number, because the mean of its divisors is an integer number (27783273083832).

Almost surely, 2^{111131210323213} is an apocalyptic number.

It is an amenable number.

111131210323213 is a deficient number, since it is larger than the sum of its proper divisors (1882012115).

111131210323213 is an equidigital number, since it uses as much as digits as its factorization.

111131210323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882012114.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 111131210323213 its reverse (312323012131111), we get a palindrome (423454222454324).

The spelling of 111131210323213 in words is "one hundred eleven trillion, one hundred thirty-one billion, two hundred ten million, three hundred twenty-three thousand, two hundred thirteen".