2781061103 has 8 divisors (see below), whose sum is σ = 2982668400. Its totient is φ = 2584977408.

The previous prime is 2781061091. The next prime is 2781061139. The reversal of 2781061103 is 3011601872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2781061103 - 2²⁰ = 2780012527 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 (2781061403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379858 + ... + 1381871.

It is an arithmetic number, because the mean of its divisors is an integer number (372833550).

Almost surely, 2^2781061103 is an apocalyptic number.

2781061103 is a deficient number, since it is larger than the sum of its proper divisors (201607297).

2781061103 is a wasteful number, since it uses less digits than its factorization.

2781061103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761801.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2781061103 is about 52735.7668285956. The cubic root of 2781061103 is about 1406.2747435106.

Adding to 2781061103 its reverse (3011601872), we get a palindrome (5792662975).

The spelling of 2781061103 in words is "two billion, seven hundred eighty-one million, sixty-one thousand, one hundred three".