10111111021103 has 2 divisors, whose sum is σ = 10111111021104. Its totient is φ = 10111111021102.

The previous prime is 10111111020949. The next prime is 10111111021147. The reversal of 10111111021103 is 30112011111101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10111111021103 - 2²⁶ = 10111043912239 is a prime.

It is a super-2 number, since 2×10111111021103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111111021603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055555510551 + 5055555510552.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555510552).

Almost surely, 2^{10111111021103} is an apocalyptic number.

10111111021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111111021103 is an equidigital number, since it uses as much as digits as its factorization.

10111111021103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 10111111021103 its reverse (30112011111101), we get a palindrome (40223122132204).

The spelling of 10111111021103 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, twenty-one thousand, one hundred three".