2103117777 has 20 divisors (see below), whose sum is σ = 3226609716. Its totient is φ = 1364182560.

The previous prime is 2103117763. The next prime is 2103117799. The reversal of 2103117777 is 7777113012.

It can be written as a sum of positive squares in 2 ways, for example, as 1401079761 + 702038016 = 37431^2 + 26496^2 .

It is not a de Polignac number, because 2103117777 - 2⁴ = 2103117761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103117707) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 347874 + ... + 353867.

Almost surely, 2^2103117777 is an apocalyptic number.

2103117777 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2103117777 is a deficient number, since it is larger than the sum of its proper divisors (1123491939).

2103117777 is an equidigital number, since it uses as much as digits as its factorization.

2103117777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701790 (or 701781 counting only the distinct ones).

The product of its (nonzero) digits is 14406, while the sum is 36.

The square root of 2103117777 is about 45859.7620687243. The cubic root of 2103117777 is about 1281.2125913425.

The spelling of 2103117777 in words is "two billion, one hundred three million, one hundred seventeen thousand, seven hundred seventy-seven".