111012210103 has 2 divisors, whose sum is σ = 111012210104. Its totient is φ = 111012210102.

The previous prime is 111012210079. The next prime is 111012210149. The reversal of 111012210103 is 301012210111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111012210103 - 2⁹ = 111012209591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012240103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506105051 + 55506105052.

It is an arithmetic number, because the mean of its divisors is an integer number (55506105052).

Almost surely, 2^111012210103 is an apocalyptic number.

111012210103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012210103 is an equidigital number, since it uses as much as digits as its factorization.

111012210103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111012210103 its reverse (301012210111), we get a palindrome (412024420214).

The spelling of 111012210103 in words is "one hundred eleven billion, twelve million, two hundred ten thousand, one hundred three".