2051101103 has 4 divisors (see below), whose sum is σ = 2094741600. Its totient is φ = 2007460608.

The previous prime is 2051101057. The next prime is 2051101133. The reversal of 2051101103 is 3011011502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051101103 - 2²⁶ = 1983992239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051101133) 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, 21820178 + ... + 21820271.

It is an arithmetic number, because the mean of its divisors is an integer number (523685400).

Almost surely, 2^2051101103 is an apocalyptic number.

2051101103 is a deficient number, since it is larger than the sum of its proper divisors (43640497).

2051101103 is an equidigital number, since it uses as much as digits as its factorization.

2051101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43640496.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 2051101103 is about 45289.0837067830. The cubic root of 2051101103 is about 1270.5614941250.

Adding to 2051101103 its reverse (3011011502), we get a palindrome (5062112605).

The spelling of 2051101103 in words is "two billion, fifty-one million, one hundred one thousand, one hundred three".