2103111420 has 48 divisors (see below), whose sum is σ = 5910017568. Its totient is φ = 558800640.

The previous prime is 2103111419. The next prime is 2103111449. The reversal of 2103111420 is 241113012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2103111420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46651 + ... + 79890.

It is an arithmetic number, because the mean of its divisors is an integer number (123125366).

Almost surely, 2^2103111420 is an apocalyptic number.

2103111420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103111420 is an abundant number, since it is smaller than the sum of its proper divisors (3806906148).

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

2103111420 is a wasteful number, since it uses less digits than its factorization.

2103111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126830 (or 126828 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2103111420 is about 45859.6927595465. The cubic root of 2103111420 is about 1281.2113004532.

Adding to 2103111420 its reverse (241113012), we get a palindrome (2344224432).

The spelling of 2103111420 in words is "two billion, one hundred three million, one hundred eleven thousand, four hundred twenty".