1011100103 has 4 divisors (see below), whose sum is σ = 1088877048. Its totient is φ = 933323160.

The previous prime is 1011100091. The next prime is 1011100117. The reversal of 1011100103 is 3010011101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010011101 = 2713 ⋅1109477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011100103 is a prime.

It is a super-2 number, since 2×1011100103² = 2044646836573221218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011100003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38888453 + ... + 38888478.

It is an arithmetic number, because the mean of its divisors is an integer number (272219262).

Almost surely, 2^1011100103 is an apocalyptic number.

1011100103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011100103 is a deficient number, since it is larger than the sum of its proper divisors (77776945).

1011100103 is an equidigital number, since it uses as much as digits as its factorization.

1011100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77776944.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 1011100103 is about 31797.8002855543. The cubic root of 1011100103 is about 1003.6864278836.

Adding to 1011100103 its reverse (3010011101), we get a palindrome (4021111204).

The spelling of 1011100103 in words is "one billion, eleven million, one hundred thousand, one hundred three".