111021212010103 has 2 divisors, whose sum is σ = 111021212010104. Its totient is φ = 111021212010102.

The previous prime is 111021212010077. The next prime is 111021212010133. The reversal of 111021212010103 is 301010212120111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111021212010103 - 2¹⁷ = 111021211879031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111021212010133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510606005051 + 55510606005052.

It is an arithmetic number, because the mean of its divisors is an integer number (55510606005052).

Almost surely, 2^{111021212010103} is an apocalyptic number.

111021212010103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021212010103 is an equidigital number, since it uses as much as digits as its factorization.

111021212010103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111021212010103 its reverse (301010212120111), we get a palindrome (412031424130214).

The spelling of 111021212010103 in words is "one hundred eleven trillion, twenty-one billion, two hundred twelve million, ten thousand, one hundred three".