2103111030 has 128 divisors (see below), whose sum is σ = 5541073920. Its totient is φ = 509160960.

The previous prime is 2103111013. The next prime is 2103111071. The reversal of 2103111030 is 301113012.

It is a junction number, because it is equal to n+sod(n) for n = 2103110997 and 2103111015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1219749 + ... + 1221471.

It is an arithmetic number, because the mean of its divisors is an integer number (43289640).

Almost surely, 2^2103111030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103111030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2770536960).

2103111030 is an abundant number, since it is smaller than the sum of its proper divisors (3437962890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103111030 is a wasteful number, since it uses less digits than its factorization.

2103111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2103111030 is about 45859.6885074463. The cubic root of 2103111030 is about 1281.2112212574.

Adding to 2103111030 its reverse (301113012), we get a palindrome (2404224042).

The spelling of 2103111030 in words is "two billion, one hundred three million, one hundred eleven thousand, thirty".