1111122103 has 24 divisors (see below), whose sum is σ = 1377893376. Its totient is φ = 877312800.

The previous prime is 1111122101. The next prime is 1111122121. The reversal of 1111122103 is 3012211111.

It is a happy number.

It is not a de Polignac number, because 1111122103 - 2¹ = 1111122101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111122101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077198 + ... + 1078228.

It is an arithmetic number, because the mean of its divisors is an integer number (57412224).

Almost surely, 2^1111122103 is an apocalyptic number.

1111122103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1111122103 is a deficient number, since it is larger than the sum of its proper divisors (266771273).

1111122103 is a wasteful number, since it uses less digits than its factorization.

1111122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1962 counting only the distinct ones).

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

The square root of 1111122103 is about 33333.4982112589. The cubic root of 1111122103 is about 1035.7475840755.

Adding to 1111122103 its reverse (3012211111), we get a palindrome (4123333214).

The spelling of 1111122103 in words is "one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred three".