112213131031123 has 2 divisors, whose sum is σ = 112213131031124. Its totient is φ = 112213131031122.

The previous prime is 112213131031121. The next prime is 112213131031189. The reversal of 112213131031123 is 321130131312211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112213131031123 - 2¹ = 112213131031121 is a prime.

It is a super-2 number, since 2×112213131031123² (a number of 29 digits) contains 22 as substring.

Together with 112213131031121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112213131031121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106565515561 + 56106565515562.

It is an arithmetic number, because the mean of its divisors is an integer number (56106565515562).

Almost surely, 2^{112213131031123} is an apocalyptic number.

112213131031123 is a deficient number, since it is larger than the sum of its proper divisors (1).

112213131031123 is an equidigital number, since it uses as much as digits as its factorization.

112213131031123 is an odious number, because the sum of its binary digits is odd.

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

Adding to 112213131031123 its reverse (321130131312211), we get a palindrome (433343262343334).

The spelling of 112213131031123 in words is "one hundred twelve trillion, two hundred thirteen billion, one hundred thirty-one million, thirty-one thousand, one hundred twenty-three".