111303221213123 has 2 divisors, whose sum is σ = 111303221213124. Its totient is φ = 111303221213122.

The previous prime is 111303221213111. The next prime is 111303221213137. The reversal of 111303221213123 is 321312122303111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111303221213123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111303221213092 and 111303221213101.

It is not a weakly prime, because it can be changed into another prime (111303221213143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651610606561 + 55651610606562.

It is an arithmetic number, because the mean of its divisors is an integer number (55651610606562).

Almost surely, 2^{111303221213123} is an apocalyptic number.

111303221213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111303221213123 is an equidigital number, since it uses as much as digits as its factorization.

111303221213123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 111303221213123 its reverse (321312122303111), we get a palindrome (432615343516234).

The spelling of 111303221213123 in words is "one hundred eleven trillion, three hundred three billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred twenty-three".